RTLPlayground/doc/gpio.md

GPIO Pin, Function and MUX registers.

These functions should bevalid for RTL8372, RTL8372N, RTL8373, and RTL8373N.

N-version doesn't seems to have all the GPIO pins available on the outside of the package.

GPIO	Function	TYPE	MUX REG, BIT	(RTL8372) PIN#	(RTL8372N) PIN#
GPIO0	LED0	I/OPU	IO_MUX_SEL_0, BIT 0	G1	12
GPIO1	LED1	I/OPU	IO_MUX_SEL_0, BIT 1	G2	15
GPIO2	LED2	I/OPU	IO_MUX_SEL_0, BIT 2	G3	14
GPIO3	LED3	I/OPU	IO_MUX_SEL_0, BIT 3	H1	16
GPIO4	LED4	I/OPU	IO_MUX_SEL_0, BIT 4	H2	18
GPIO5	LED5	I/OPU	IO_MUX_SEL_0, BIT 5	H3	20
GPIO6	LED6	I/OPU	IO_MUX_SEL_0, BIT 6	J1	22
GPIO7	LED7	I/OPU	IO_MUX_SEL_0, BIT 7	J2	NoPin?
GPIO8	LED8	I/OPU	IO_MUX_SEL_0, BIT 8	J3	24
GPIO9	LED9	I/OPD	IO_MUX_SEL_0, BIT 9	L1	23
GPIO10	LED10	I/OPU	IO_MUX_SEL_0, BIT 10	L2	26
GPIO11	LED11	I/OPU	IO_MUX_SEL_0, BIT 11	L3	NoPin?
GPIO12	LED12	I/OPD	IO_MUX_SEL_0, BIT 12	M1	28
GPIO13	LED13	I/OPU	IO_MUX_SEL_0, BIT 13	M2	NoPin?
GPIO14	LED14	I/OPU	IO_MUX_SEL_0, BIT 14	M3	NoPin?
GPIO15	LED15	I/OPU	IO_MUX_SEL_0, BIT 15	N1	25
GPIO16	LED16	I/OPU	IO_MUX_SEL_0, BIT 16	N2	NoPin?
GPIO17	LED17	I/OPU	IO_MUX_SEL_0, BIT 17	N3	NoPin?
GPIO18	LED18	I/OPD	IO_MUX_SEL_0, BIT 18	P1	30
GPIO19	LED19	I/OPU	IO_MUX_SEL_0, BIT 19	P2	NoPin?
GPIO20	LED20	I/OPU	IO_MUX_SEL_0, BIT 20	P3	NoPin?
GPIO21	LED21	I/OPU	IO_MUX_SEL_0, BIT 21	R1	27
GPIO22	LED22	I/OPU	IO_MUX_SEL_0, BIT 22	R2	NoPin?
GPIO23	LED23	I/OPU	IO_MUX_SEL_0, BIT 23	R3	NoPin?
GPIO24	LED24	I/OPU	IO_MUX_SEL_0, BIT 24	N19	88
GPIO25	LED25	I/OPU	IO_MUX_SEL_0, BIT 25	P19	86
GPIO26	LED26	I/OPU	IO_MUX_SEL_0, BIT 26	P18	84
GPIO27	LED27	I/OPU	IO_MUX_SEL_0, BIT 27	R19	82
GPIO28	SYS_LED	I/OPU	IO_MUX_SEL_0, BIT 28	F1	13
GPIO29	GLB_RLDP_LED_EN		IO_MUX_SEL_0, BIT 29		NoPin?
GPIO30	ACL_BIT3_EN		IO_MUX_SEL_2, BIT 3	F3	11
GPIO31	UART TX (OUTPUT)		IO_MUX_SEL_1, BIT 0	L20	90
GPIO32	UART TX (INPUT)		IO_MUX_SEL_1, BIT 1	L21
GPIO33	GPIO_INT		IO_MUX_SEL_1, BIT 2
GPIO34	MDC0		IO_MUX_SEL_1, BIT 3
GPIO35	MDIO0		IO_MUX_SEL_1, BIT 4
GPIO36	PWM_OUT		IO_MUX_SEL_1, BIT 30	B13
GPIO37	---			L18
GPIO38	---			K19
GPIO39	MSDA4		IO_MUX_SEL_1, BIT 29	K20	95
GPIO40	MDC1/SCL3		IO_MUX_SEL_1, BIT 5 & 6	J29
GPIO41	MDIO1/MSDA3		IO_MUX_SEL_1, BIT 5 & 6	J19
GPIO42	SPI-MEMORY		RTL8373_INI_MODE_ADDR, BIT 0 & 1	D1
GPIO43	SPI-MEMORY		RTL8373_INI_MODE_ADDR, BIT 0 & 1	E1
GPIO44	SPI-MEMORY		RTL8373_INI_MODE_ADDR, BIT 0 & 1	D2
GPIO45	SPI-MEMORY		RTL8373_INI_MODE_ADDR, BIT 0 & 1	E2
GPIO46	MSCK0		IO_MUX_SEL_1, BIT 7 & 8	A2
GPIO47	MSDA0		IO_MUX_SEL_1, BIT 9 & 10	B2
GPIO48	MSCK1		IO_MUX_SEL_1, BIT 11 & 12	A1
GPIO49	MSDA1		IO_MUX_SEL_1, BIT 13 & 14	B1
GPIO50	MSCL2/U1TXD		IO_MUX_SEL_1, BIT 15 & 16	C1
GPIO51	MSDA2/U1RXD		IO_MUX_SEL_1, BIT 17 & 18	C2
GPIO52	ACL_BIT0_EN		IO_MUX_SEL_2, BIT 0
GPIO53	ACL_BIT1_EN		IO_MUX_SEL_2, BIT 1
GPIO54	ACL_BIT2_EN		IO_MUX_SEL_2, BIT 2	E5
GPIO55	PTP_CLK125M_IN		IO_MUX_SEL_1, BIT 19
GPIO56	PTP_CLK_OUT		IO_MUX_SEL_1, BIT 20
GPIO57	PTP_TOD_OUT		IO_MUX_SEL_1, BIT 21
GPIO58	PTP_PPS_OUT		IO_MUX_SEL_1, BIT 22
GPIO59	PTP_TOD_IN		IO_MUX_SEL_1, BIT 23
GPIO60	PTP_PPS_IN		IO_MUX_SEL_1, BIT 24
GPIO61	SYNCELOCK0		IO_MUX_SEL_1, BIT 27
GPIO62	SYNCELOCK1		IO_MUX_SEL_1, BIT 28
GPIO63	GPIO_MDIO0		IO_MUX_SEL_1, BIT 4

I2C

I2C	Function	Type	(RTL8372) PIN#	(RTL8372N) PIN#
GPIO47	SDA0	I/OPU		B1
GPIO49	SDA1	I/OPU		B2
GPIO51	SDA2	I/OPU		C2
GPIO41	SDA3	I/OPU		J20
GPIO39	SDA4	I/OPU		K20
GPIO46	SCL0	I/OPU		A2
GPIO48	SCL1	I/OPU		A1
GPIO50	SCL2	I/OPU		C1
GPIO40?	SCL3	OPU		J20

Other funcitons

Function	Type	(RTL8372) PIN#	(RTL8372N) PIN#
nRESET		A6	131
PTP_SYNC		B10	130
INT	OPU	B6	132