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README

Caravel Analog User

License CI Caravan Build

:exclamation: Important Note

This is the first test chip from the Chipalooza challenge 2024. 11 designs made it on the April tapeout.

The projects on this tapeout and their source URLs are as follows:

1.  	High-speed crystal oscillator (4-16MHz)
	hsxo-cpz1 
	https://github.com/efabless/sky130_ht_ip__hsxo_cpz1 (forked)
	https://github.com/htfab/hsxo-cpz1
	Tamas Hubai

2.  	Brownout detector
	sky130_ajc_ip__brownout
	https://github.com/efabless/sky130_ajc_ip__brownout (forked)
	https://github.com/ajcci/sky130_ajc_ip__brownout
	Robin Tsang

3.  	Overvoltage detector
	sky130_ajc_ip__overvoltage
	https://github.com/efabless/sky130_ajc_ip__overvoltage (forked)
	https://github.com/ajcci/sky130_ajc_ip__overvoltage
	Robin Tsang

4.  	Power-on-Reset
	sky130_ajc_ip__por
	https://github.com/efabless/sky130_ajc_ip__por (forked)
	https://github.com/ajcci/sky130_ajc_ip__por
	Robin Tsang

5.  	Comparator
	sky130_ak_ip__comparator
	https://github.com/efabless/sky130_ak_ip__comparator (forked)
	https://github.com/andrewkkang/sky130_ak_ip__comparator
	Andrew Kang

6.  	Low-speed crystal oscillator (32kHz)
	sky130_be_ip__lsxo
	https://github.com/efabless/sky130_be_ip__lsxo (forked)
	https://github.com/b-etz/sky130_be_ip__lsxo
	Brady Etz

7.  	Temperature sensor
	sky130_od_ip__tempsensor
	https://github.com/efabless/sky130_od_ip__tempsensor (forked)
	https://github.com/ordicker/sky130_od_ip__tempsensor
	Or Dicker

8.  	Low power operational amplifier
	sky130_rodovalho_ip__lpopamp
	https://github.com/efabless/sky130_rodovalho_ip__lpopamp (forked)
	https://github.com/lhrodovalho/sky130_rodovalho_ip__lpopamp
	Luis Henrique Rodovalho

9.  	High gain-bandwidth operational amplifier
	sky130_td_ip__opamp_hp
	https://github.com/efabless/sky130_td_ip__opamp_hp (forked)
	https://github.com/tdextrous/sky130_td_ip__opamp_hp
	Thomas Dexter

10. 	Overvoltage detector
	sky130_vbl_ip__overvoltage
	https://github.com/efabless/sky130_vbl_ip__overvoltage (forked)
	https://github.com/LDFranck/sky130_vbl_ip__overvoltage
	Lucas Franck, William Orlato, and Toni Tejada

11.	Bandgap (not from Chipalooza)
	bandgap
	https://github.com/efabless/sky130_cw_ip (forked)
	https://github.com/christoph-weiser/mpw7
	Christoph Weiser

12.	Power FET (not from Chipalooza)
	power_stage
	(in this repository)
	Weston Braun

13.	Bias current generator (not from Chipalooza)
	bias_generator
	(in this repository)
	Tim Edwards

14.	Ground-isolated analog switch (not from Chipalooza)
	isolated_switch_ena1v8
	(in this repository)
	Tim Edwards

(Documentation, including test instructions, still needs to be completed)

:---: | :---

Building:

Get the dependencies above by doing "make get_ip_blocks" in the top level directory. This will clone all of the IP blocks from various github repository sources into the "dependencies" directory.

The test chip is generated in magic by running magic in the mag/ directory and issuing the command "source construct_testchip.tcl".

Verifying:

In the top level directory, do "make run-precheck". This requires at least setting environment variables PDK_ROOT, PDK, and PRECHECK_ROOT. If the PDK is installed with open_pdks, then PRECHECK_ROOT can be set to open_pdks/sources/precheck_sky130.

Testing:

All projects are connected either to the logic analyzer (128 I/O bits) or the GPIO pins. Generally speaking, static control bits (enable and trim, for example) are logic analyzer outputs. Dynamic digital bits are routed to GPIO digital outputs, while analog I/O are routed to the analog connections of the GPIO.

Each power supply is routed through gated power pFETs so each project can be powered individually. Each power supply connection internally is routed to a bare analog pin for monitoring the supply voltage of the project. Be aware that these are ESD-sensitive points!

Power supplies are enabled through a differential switch. Due to time constraints, the differential signals (enable, !enable) were both routed to the logic analyzer. Both bits need to be set correctly.

Most projects take current biases which are distributed by a central bias current generator circuit. Various test point bias currents are connected through ground-isolated switches to GPIO analog signals.

Project circuit blocks are described below, starting at the top left corner of the chip and working counterclockwise around the chip perimeter.

High Gain-Bandwidth Operational Amplifier
(Thomas Dexter)
Enable: la_data_in[37]
Bias: 100nA when selected
Selection: la_data_in[40] = 0
Upstream analog power supply: vdda2/vssa2
Upstream digital power supply: vccd2/vssd2
Power supply monitor: io_analog[10] (pin GPIO 24) "mon_hgbw_opamp"
Power supply enable: la_data_in[60]
Amp output: gpio_noesd[7] (pin GPIO 25) "hgbw_opamp_out"
Amp negative input: gpio_analog[8] (pin GPIO 26) "hgbw_opamp_in-" when selected
Selection: la_data_in[36] = 1
Amp positive input: gpio_analog[9] (pin GPIO 27) "hgbw_opamp_in+" when selected
Selection: la_data_in[34] = 1

Temperature sensor
(Or Dicker)
Enable: la_data_in[35]
Bias: gpio_noesd[2] (pin GPIO 9) "1.2V_bias" (nominally 1.2V) when selected
Selection: la_data_in[122] = 1
Upstream digital power supply: vccd2/vssd2
Power supply monitor: io_analog[9] (pin GPIO 23) "mon_temp_sense"
Power supply enable: la_data_in[58]
Vbe1_out: gpio_analog[9] (pin GPIO 27) "temp_sense_vbe1" when selected
Selection: la_data_in[34] = 0
Vbe2_out: gpio_analog[8] (pin GPIO 26) "temp_sense_vbe2" when selected
Selection: la_data_in[36] = 0

Comparator
(Andrew Kang)
Enable: la_data_in[28]
Hysteresis: la_data_in[29:30]
Trim: la_data_in[25:27],la_data_in[33:31]
Bias: 400nA when selected
Selection: la_data_in[44] = 0
Upstream analog power supply: vdda2/vssa2
Upstream digital power supply: vccd2/vssd2
Power supply monitor: io_analog[8] (pin GPIO 22) "mon_comparator"
Power supply enable: la_data_in[56]
Comparator output: io_out[17] (pin GPIO 28) "comparator_out"
Comparator negative input: gpio_analog[12] (pin GPIO 30) "comparator_in-" when selected
Selection: la_data_in[22] = 1
Comparator positive input: gpio_analog[11] (pin GPIO 29) "comparator_in+" when selected
Selection: la_data_in[23] = 1

Low power operational amplifier
(Luis Henrique Rodovalho)
Enable: la_data_in[21]
Bias: 10uA when selected
Selection: la_data_in[46] = 0
Upstream analog power supply: vdda2/vssa2
Upstream digital power supply: vccd2/vssd2
Power supply monitor: io_analog[7] (pin GPIO 21) "mon_lpopamp"
Power supply enable: la_data_in[54]
Amplifier output: gpio_analog[13] (pin GPIO 31) "lpopamp_out"
Amplifier negative input: gpio_analog[11] (pin GPIO 29) "lpopamp_in-" when selected
Selection: la_data_in[23] = 0
Amplifier positive input: gpio_analog[12] (pin GPIO 30) "lpopamp_in+" when selected
Selection: la_data_in[22] = 0

High speed crystal oscillator
(Tamas Hubai)
Enable: la_data_in[19]
Standby: la_data_in[20]
Bias: 10uA when selected
Selection: la_data_in[47] = 0
Upstream analog power supply: vdda2/vssa2
Upstream digital power supply: vccd2/vssd2
Power supply monitor: io_analog[6] (pin GPIO 20) "mon_hsxo"
Power supply enable: la_data_in[52]
Oscillator out: io_out[23] (pin GPIO 34) "hsxo_out"
Crystal Xin: gpio_analog[14] (pin GPIO 32) "hsxo_xin"
Crystal Xout: gpio_analog[15] (pin GPIO 33) "hsxo_xout"

Bandgap (Christoph Weiser)
Enable: none (enable via power supply)
Bias: self-biased
Trim: la_data_in[9,8,10,7,11,6,12,5,13,4,14,3,15,2,16,1]
Upstream digital power supply: vccd2/vssd2
Power supply monitor: io_analog[5] (pin GPIO 19) "mon_bandgap"
Power supply enable: la_data_in[50]
Bandgap output: gpio_analog[16] (pin GPIO 34) "bandgap_out" when selected
Selection: la_data_in[18] = 1

Brownout detector (Robin Tsang)
Enable: la_data_in[109]
Bias: gpio_noesd[2] (pin GPIO 9) "1.2V_bias" (nominally 1.2V) when selected
Selection: la_data_in[122] = 0
Bias: 200nA when selected
Selection: la_data_in[43] = 0
Trip point select (otrip): la_data_in[112:113,111]
Trip point select (vtrip): la_data_in[107:106,108]
Force enable RC osc: la_data_in[115]
Force disable RC osc: la_data_in[114]
Force short oneshot: la_data_in[116]
Current source select: la_data_in[110]
Upstream analog power supply: vdda1/vssa1
Upstream digital power supply: vccd1/vssd1
Power supply monitor: io_analog[0] (pin GPIO 14) "mon_brownout"
Power supply enable: la_data_in[77]
Outb: io_out[0] (pin GPIO 0) "brownout_outb"
Dcomp: io_out[1] (pin GPIO 1) "brownout_dcomp"
Vunder: io_out[5] (pin GPIO 5) "brownout_vunder"
Timed out: la_data_out[117]

Overvoltage detector (Robin Tsang)
Enable: la_data_in[100]
Bias: gpio_noesd[2] (pin GPIO 9) "1.2V_bias" (nominally 1.2V) when selected
Selection: la_data_in[122] = 0
Bias: 200nA when selected
Selection: la_data_in[42] = 0
Trip point select (otrip): la_data_in[105:102]
Current source select: la_data_in[101]
Upstream analog power supply: vdda1/vssa1
Upstream digital power supply: vccd1/vssd1
Power supply monitor: io_analog[1] (pin GPIO 15) "mon_overvoltage1"
Power supply enable: la_data_in[75]
Ovout: io_out[6] (pin GPIO 6) "overvoltage1_ovout"

Power-on-reset (Robin Tsang)
Bias: gpio_noesd[2] (pin GPIO 9) "1.2V_bias" (nominally 1.2V) when selected
Selection: la_data_in[122] = 0
Bias: 200nA when selected
Selection: la_data_in[41] = 0
Trip point select (otrip): la_data_in[96:98]
Force PDN: la_data_in[94]
Force enable RC osc: la_data_in[93]
Force disable RC osc: la_data_in[92]
Force short oneshot: la_data_in[99]
Current source select: la_data_in[95]
Upstream analog power supply: vdda1/vssa1
Upstream digital power supply: vccd1/vssd1
Power supply monitor: io_analog[2] (pin GPIO 16) "mon_por"
Power supply enable: la_data_in[73]
POR: io_out[7] (pin GPIO 7) "por_out"
PORb: io_out[8] (pin GPIO 8) "por_outb"
Osc_clk: io_out[3] (pin GPIO 3) "por_osc_clk"
Dcomp: io_out[2] (pin GPIO 2) "por_dcomp"
Pwup_filt: io_out[4] (pin GPIO 4) "por_pwup_filt"
Startup timed out: la_data_out[120]
POR timed out: la_data_out[119]

Low-speed (32kHz) crystal oscillator (Brady Etz)
Enable: la_data_in[86]
Standby: la_data_in[85]
Bias: 50nA when selected
Selection: la_data_in[39] = 0
Upstream analog power supply: vdda1/vssa1
Upstream digital power supply: vccd1/vssd1
Power supply monitor: io_analog[3] (pin GPIO 17) "mon_lsxo"
Power supply enable: la_data_in[69]
Dout: io_out[12] (pin GPIO 12) "lsxo_out"
Crystal XIn: gpio_noesd[3] (pin GPIO 10) "lsxo_xin"
Crystal XOut: gpio_noesd[4] (pin GPIO 11) "lsxs_xout"

Overvoltage detector (Lucas Franck & William Orlato)
Enable: la_data_in[91]
Bias: gpio_noesd[2] (pin GPIO 9) "1.2V_bias" (nominally 1.2V) when selected
Selection: la_data_in[122] = 1
Bias: 600nA when selected
Selection: la_data_in[45] = 0
Trip point select (vtrip): la_data_in[87:90]
Upstream analog power supply: vdda1/vssa1
Upstream digital power supply: vccd1/vssd1
Power supply monitor: io_analog[4] (pin GPIO 18) "mon_overvoltage2"
Power supply enable: la_data_in[65]
OVout: io_out[13] (pin GPIO 13) "overvoltage2_out"

All bias currents are regulated by an input bias voltage which is nominally 3.3V but may be adjusted up or down to trim the bias (limit max. voltage VDDIO + 0.3V to avoid forward biasing the ESD diodes into the power supply).
Bias in: gpio_analog[17] (pin GPIO 35) "bias_trim_in"

Three power FETs are unused but should be kept disabled:
Enable: la_data_in[62], la_data_in[67], la_data_in[71]

The bias generator has a master enable signal that will enable all bias currents:

Enable bias generator: la_data_in[79]

It also has a separate disable signal for the sources (which is all of the biases used by projects on this chip):

Disable bias generator sources: la_data_in[48]

These current sources/sinks are multiplexed to analog pins not otherwise being used for projects. The "enable" or "disable" bit enables or disables the current bias, and "selection" connects it to the associated pin:

100nA source (test0): gpio_analog[16] (pin GPIO 34) when selected
Disable: la_data_in[49]
Selection: la_data_in[18] = 0 (at pin)

100nA source (test1): gpio_analog[10] (pin GPIO 28) when selected
Disable: la_data_in[38]
Selection: la_data_in[17] = 1 (at pin)

100nA sink (test1): gpio_analog[6] (pin GPIO 13) when selected
Enable: la_data_in[84]
Selection: la_data_in[124] = 1 (at pin)

3.7uA sink (sink_3700): gpio_analog[5] (pin GPIO 12) when selected
Enable: la_data_in[83]
Selection: la_data_in[123] = 1 (at pin)

5.0uA sink (sink_5000_1): gpio_analog[1] (pin GPIO 8) when selected
Enable: la_data_in[81]
Selection: la_data_in[121] = 1 (at pin)

100nA sink (test0): gpio_analog[0] (pin GPIO 7) when selected
Enable: la_data_in[78]
Selection: la_data_in[118] = 1 (at pin)

Refer to README for this sample project documentation.

Refer to docs/chipalooza_testchip1.pdf (.ps) for a package pinout drawing.

Chip QFN-64 package pinout:

Pin Signal(s)
1 vssa2
2 mprj_io[25] hgbw_opamp_out
3 mprj_io[26] hgbw_opamp_in- temp_sense_vbe2
4 mprj_io[27] hgbw_opamp_in+ temp_sense_vbe1
5 mprj_io[28] comparator_out source_100_1
6 mprj_io[29] comparator_in+ lpopamp_in-
7 mprj_io[30] comparator_in- lpopamp_in+
8 mprj_io[31] lpopamp_out
9 vdda2
10 vssd2
11 mprj_io[32] hsxo_xin
12 mprj_io[33] hsxo_xout
13 mprj_io[34] hsxo_out bandgap_out source_100_0
14 mprj_io[35] bias_trim_in
15 mprj_io[36]
16 mprj_io[37]
17 vddio
18 vccd
19 N/C
20 vssa
21 resetb
22 clock
23 vssd
24 flash_csb
25 flash_clk
26 flash_io0
27 flash_io1
28 gpio
29 vssio
30 vdda
31 mprj_io[0] brownout_outb
32 mprj_io[1] brownout_dcomp
37 mprj_io[2] por_dcomp
34 mprj_io[3] por_osc_clk
35 mprj_io[4] por_pwup_filt
36 mprj_io[5] brownout_vunder
37 mprj_io[6] overvoltage1_ovout
38 vssa1
39 vssd1
40 vdda1
41 mprj_io[7] por_out sink_100_0
42 mprj_io[8] por_outb
43 mprj_io[9] 1.2V_bias
44 mprj_io[10] lsxo_xin
45 mprj_io[11] lsxo_xout
46 mprj_io[12] lsxo_out sink_3700
47 vdda1
48 mprj_io[13] overvoltage2_out sink_100_1
49 vccd1
50 mprj_io[14] mon_brownout
51 mprj_io[15] mon_overvoltage1
52 vssa1
53 mprj_io[16] mon_por
54 mprj_io[17] mon_lsxo
55 mprj_io[18] mon_overvoltage2
56 vssio
57 mprj_io[19] mon_bandgap
58 mprj_io[20] mon_hsxo
59 mprj_io[21] mon_lpopamp
60 mprj_io[22] mon_comparator
61 mprj_io[23] mon_temp_sense
62 mprj_io[24] mon_hgbw_opamp
63 vccd2
64 vddio

NOTES: The following pins have dual analog and digital functions. The analog function is enabled/disabled by a ground isolation swtch, and the digital function is enabled/disabled by configuring the GPIO from software.

pin 41: por_out (digital), sink_100_0 (analog)
pin 42: porb_out (digital), sink_5000_1 (analog)
pin 46: lsxo_out (digital), sink_3700 (analog)
pin 5: comparator_out (digital), source_100_1 (analog)
pin 13: hsxo_out (digital), bandgap_out, source_100_0 (analog, multiplexed)*

*Because the analog on pin 13 is multiplexed, the analog can only be completely disabled by selecting source_100_0 as the multiplexer input and then disabling the current source. This is not ideal but should not interfere with the HSXO output.

Logic analyzer map:

la_data_in[16:1] Bandgap trim (not in order)
la_data_in[17] Select source_test_1 at pin
la_data_in[18] Select bandgap_out (1) or source_test_0 (0)
la_data_in[19] HSXO enable
la_data_in[20] HSXO standby
la_data_in[21] LP opamp enable
la_data_in[22] Select comparator_in- (1) or lpopamp_in+ (0)
la_data_in[23] Select comparator_in+ (1) or lpopamp_in- (0)
la_data_in[27:25] Comparator trim
la_data_in[28] Comparator enable
la_data_in[30:29] Comparator hysteresis
la_data_in[33:31] Comparator trim
la_data_in[34] Select hgbw_opamp_in+ (1) or temp_sense_vbe1 (0)
la_data_in[35] Temperature sensor enable
la_data_in[36] Select hgbw_opamp_in- (1) or temp_sense_vbe2 (0)
la_data_in[37] HGBW op amp enable
la_data_in[38] Disable source_test_1 at bias
la_data_in[39] Disable LSXO 50nA bias
la_data_in[40] Disable HGBW op amp 100nA bias
la_data_in[41] Disable POR 200nA bias
la_data_in[42] Disable Overvoltage1 200nA bias
la_data_in[43] Disable Brownout 200nA bias
la_data_in[44] Disable Comparator 400nA bias
la_data_in[45] Disable Overvoltage2 600nA bias
la_data_in[46] Disable LP op amp 10uA bias
la_data_in[47] Disable HSXO 10uA bias
la_data_in[48] Disable bias generator sources
la_data_in[49] Disable source_test_0
la_data_in[50] Enable Bandgap power supply
la_data_in[52] Enable HSXO power supply
la_data_in[54] Enable LP op amp power supply
la_data_in[56] Enable Comparator power supply
la_data_in[58] Enable Temperature sensor power supply
la_data_in[60] Enable HGBW op amp power supply
la_data_in[62] (Enable unused power supply)
la_data_in[65] Enable Overvoltage2 power supply
la_data_in[67] (Enable unused power supply)
la_data_in[69] Enable LSXO power supply
la_data_in[71] (Enable unused power supply)
la_data_in[73] Enable POR power supply
la_data_in[75] Enable Overvoltage1 power supply
la_data_in[77] Enable Brownout power supply
la_data_in[78] Enable sink_test_0
la_data_in[79] Enable bias generator (master enable)
la_data_in[80] Enable sink_5000_0 (unused)
la_data_in[81] Enable sink_5000_1
la_data_in[82] Enable sink_5000_2 (unused)
la_data_in[83] Enable sink_3700
la_data_in[84] Enable sink_test_1
la_data_in[85] LSXO Standby
la_data_in[86] LSXO Enable
la_data_in[90:87] Overvoltage2 trip point selection
la_data_in[91] Overvoltage2 enable
la_data_in[92] POR force disable RC oscillator
la_data_in[93] POR force enable RC oscillator
la_data_in[94] POR force PDN
la_data_in[95] POR current source select
la_data_in[98:96] POR trip point select
la_data_in[99] POR force short oneshot
la_data_in[100] Overvoltage1 enable
la_data_in[101] Overvoltage1 current source select
la_data_in[105:102] Overvoltage1 trip point select
la_data_in[108:106] Brownout trip point (vtrip) select
la_data_in[109] Brownout enable
la_data_in[110] Brownout current source select
la_data_in[113:111] Brownout trip point (otrip) select
la_data_in[114] Brownout force disable RC oscillator
la_data_in[115] Brownout force enable RC oscillator
la_data_in[116] Brownout force short oneshot
la_data_out[117] Brownout timed out
la_data_in[118] Select sink_test_0 at pin
la_data_out[119] POR timed out
la_data_out[120] POR startup timed out
la_data_in[121] Select sink_5000_1 at pin
la_data_in[122] Select 1.2V bias (see above)
la_data_in[123] Select sink_3700 at pin
la_data_in[124] Select sink_test_1 at pin
la_data_in[125] Enable sink_2000 (unused)

Test plan:

Write a software routine to run on flash that communicates via UART. Because projects use GPIO[1-4] (housekeeping SPI) and GPIO[5-6] (UART), use pin GPIO[36] to toggle between the UART and project I/O, and use pin GPIO[37] to toggle between the housekeeping SPI and project I/O. Program should communicate with the host computer to select and identify projects, and to set trim and other configuration bits as needed.

For helping with testbench scripting, an API has been defined in the firmware/ directory. File chipalooza_defs.h define all of the bit mask values into the logic analyzer data arrays. File chipalooza_utils.c defines a set of routines for accessing each of the projects. Note that this only defines access to each project for the configuration that is set or read from the logic analyzer data array. Check the connections of each project referenced above for information on what I/O pins to connect to for each project, which power supplies need to be enabled, and any other board-level inputs or outputs required.

chipalooza_utils.c API:

Bandgap:

void bandgap_powerup()

void bandgap_powerdown()

void bandgap_select_output()

void bandgap_set_trim(uint16_t value)

HSXO:

void hsxo_powerup()

void hsxo_powerdown()

void hsxo_enable()

void hsxo_disable()

void hsxo_run()

void hsxo_standby()

void hsxo_bias_enable()

void hsxo_bias_disable()

LSXO:

void lsxo_powerup()

void lsxo_powerdown()

void lsxo_enable()

void lsxo_disable()

void lsxo_run()

void lsxo_standby()

void lsxo_bias_enable()

void lsxo_bias_disable()

LP opamp:

void lp_opamp_powerup()

void lp_opamp_powerdown()

void lp_opamp_enable()

void lp_opamp_disable()

void lp_opamp_enable_inputs()

void lp_opamp_bias_enable()

void lp_opamp_bias_disable()

Comparator:

void comparator_powerup()

void comparator_powerdown()

void comparator_enable()

void comparator_disable()

void comparator_enable_inputs()

void comparator_bias_enable()

void comparator_bias_disable()

void comparator_set_hyst(uint8_t value)

void comparator_set_trim(uint8_t value)

Temperature sensor:

void tempsense_powerup()

void tempsense_powerdown()

void tempsense_enable()

void tempsense_disable()

void tempsense_enable_outputs()

HGBW op-amp:

void hgbw_opamp_powerup()

void hgbw_opamp_powerdown()

void hgbw_opamp_enable()

void hgbw_opamp_disable()

void hgbw_opamp_enable_inputs()

void hgbw_opamp_bias_enable()

void hgbw_opamp_bias_disable()

Overvoltage detector (2):

void overvoltage2_powerup()

void overvoltage2_powerdown()

void overvoltage2_enable()

void overvoltage2_disable()

void overvoltage2_bias_enable()

void overvoltage2_bias_disable()

void overvoltage2_set_trippoint(uint8_t value)

POR:

void por_powerup()

void por_powerdown()

void por_vbg_enable()

void por_vbg_disable()

void por_bias_enable()

void por_bias_disable()

void por_osc_default()

void por_force_osc_on()

void por_force_osc_off()

void por_pdn_default()

void por_force_pdn()

void por_select_external_bias()

void por_select_internal_bias()

void por_oneshot_mode()

void por_continuous_mode()

void por_set_trippoint(uint8_t value)

uint8_t por_get_timeout()

uint8_t por_get_startup_timeout()

Overvoltage detector (1):

void overvoltage1_powerup()

void overvoltage1_powerdown()

void overvoltage1_enable()

void overvoltage1_disable()

void overvoltage1_bias_enable()

void overvoltage1_bias_disable()

void overvoltage1_select_external_bias()

void overvoltage1_select_internal_bias()

void overvoltage1_set_trippoint(uint8_t value)

Brownout detector:

void brownout_powerup()

void brownout_powerdown()

void brownout_vbg_enable()

void brownout_vbg_disable()

void brownout_bias_enable()

void brownout_bias_disable()

void brownout_select_external_bias()

void brownout_select_internal_bias()

void brownout_set_vtrippoint(uint8_t value)

void brownout_set_otrippoint(uint8_t value)

void brownout_osc_default()

void brownout_force_osc_on()

void brownout_force_osc_off()

void brownout_oneshot_mode()

void brownout_continuous_mode()

uint8_t brownout_get_timeout()

Bias generator:

void biasgen_enable()

void biasgen_disable()

void biasgen_sources_enable()

void biasgen_sources_disable()

Bias generator test outputs:

void biasgen_source_test0_enable()

void biasgen_source_test0_disable()

void biasgen_source_test0_enable_output()

void biasgen_source_test0_disable_output()

void biasgen_source_test1_enable()

void biasgen_source_test1_disable()

void biasgen_source_test1_enable_output()

void biasgen_source_test1_disable_output()

void biasgen_sink_test0_enable()

void biasgen_sink_test0_disable()

void biasgen_sink_test0_enable_output()

void biasgen_sink_test0_disable_output()

void biasgen_sink_test1_enable()

void biasgen_sink_test1_disable()

void biasgen_sink_test1_enable_output()

void biasgen_sink_test1_disable_output()

void biasgen_sink_test_3700_enable()

void biasgen_sink_test_3700_disable()

void biasgen_sink_test_3700_enable_output()

void biasgen_sink_test_3700_disable_output()

void biasgen_sink_test_5000_enable()

void biasgen_sink_test_5000_disable()

void biasgen_sink_test_5000_enable_output()

void biasgen_sink_test_5000_disable_output()

Power switching:

void powerdown_unused()

void powerdown_all()

General:

void init_logic_analyzer()
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