Gigabeat Port Pin Assignments

The values of the port pin control registers after boot:

Port	Config value
A	00	FF	FF	FF
B	00	01	54	95
C	AA	A0	54	A8
D	AA	A0	AA	A5
E	AA	80	02	AA
F	00	00	0A	AA
G	01	50	10	00
H	00	15	40	A5

Port A

Port pin	I/O/F	Description	CPU pin
0	F	ADDR0	F7
1	F	ADDR16	D9
2	F	ADDR17	G9
3	F	ADDR18	F9
4	F	ADDR19	H9
5	F	ADDR20	D10
6	F	ADDR21	C10
7	F	ADDR22	H10
8	F	ADDR23	E10
9	F	ADDR24	C11
10	F	ADDR25	D10
11	F	ADDR26	G11
12	F	nGCS[1]	B2
13	F	nGCS[2]	C3
14	F	nGCS[3]	C4
15	F	nGCS[4]	D3
16	F	nGCS[5]	C2
17	F	CLE	F5
18	F	ALE	D1
19	F	nFWE	F3
20	F	nFRE	E1
21	F	nRSTOUT	N13
22	F	nFCE	F4

Port B

Port pin	I/O/F	Description	CPU pin
0	O		J6
1	O		J5
2	O	SC606 enable	J7
3	F	TOUT3 to generate audio beeps	K3
4	I/O	USB2ATA?: RESET#	K4
5	O	USB2ATA?: ATA_EN	K2
6	O	USB2ATA?: VBUS_PRW_VALID	L5
7	O	LCD reset	K7
8	O	LCD CS	K5
9	I		L3
10	I		K6

Port C

Port pin	I/O/F	Description	CPU pin
0	I	flash related	L1
1	F	VCLK	M4
2	F	VLINE	M1
3	F	VFRAME	L7
4	I	flash related	M4
5	O	mutes headphone output (HPDETECT?)	M3
6	O	flash lock	M2
7	O	SDI/SDO to DAC switch	P1
8	I	flash related	N2
9	I	flash related	L6
10	F	video data B0	N4
11	F	video data B1	R1
12	F	video data B2	N3
13	F	video data B3	P2
14	F	video data B4	M6
15	F	video data B5	P3

Port D

Port pin	I/O/F	Description	CPU pin
0	O	cradle: speaker amp control?	R2
1	O	cradle: speaker amp control?	N5
2	F	video data G0	M5
3	F	video data G1	R3
4	F	video data G2	P4
5	F	video data G3	R4
6	F	video data G4	P5
7	F	video data G5	N6
8	I		M7
9	I		T4
10	F	video data R0	R5
11	F	video data R1	T5
12	F	video data R2	P6
13	F	video data R3	R6
14	F	video data R4	N7
15	F	video data R5	U5

Port E

Port pin	I/O/F	Description	CPU pin
0	F	I2SLRCK?	P7
1	F	I2SSCLK?	R7
2	F	CDCLK	T7
3	F	I2SDI?	L8
4	F	I2SDO?	U6
5	I		N8
6	I		K8
7	I		R8
8	I		M8
9	I		P8
10	I		J9
11	F	SPIMOSO0	K9
12	F	SPIMOSI0	P9
13	F	SPICLK0	L9
14	F	IICSCL	U8
15	F	IICSDA	M9

Port F

Port pin	I/O/F	Description	CPU pin
0	F	EINT0 / unit USB connected	N17
1	F	EINT1 / cradle USB connected	M16
2	F	EINT2 / ATA IRQ	L13
3	F	EINT3	M15
4	F	EINT4 / charger connected (main or cradle)	M17
5	F	EINT5	L14
6	F	EINT6 / cradle sync button	L15
7	I	cradle CD rip button	L16

Port G

Port pin	I/O/F	Description	CPU pin
0	I	power button	N9
1	I	menu button	T9
2	I	volume up button	J10
3	I	volume down button	R10
4	I	A button	P11
5	I		K11
6	O	RI Onkyo? (set to 0 in legna_misc_cradle_power_on)	R10
7	I		L10
8	I	battery charging	T10
9	I	battery switch	M11
10	O	USB2ATA?: ARESET#	N10
11	O	set to 1 in power_up_seq in hdd_pm, 0 spins down drive, 1 spins up drive	U12
12	O	set to 0 in power_up_seq in hdd_pm	M10
13	I	cradle powered	T11
14	I	cradle usb/line-in switch	L11
15	I	hold switch	U13

Port H

Port pin	I/O/F	Description	CPU pin
0	O		K11
1	O		L17
2	F	TXD0	K13
3	F	RXD0	K14
4	I		K16
5	I		K17
6	I		J11
7	O	Dock connector bus switch enable	J15
8	O	Cradle power control	K15
9	I/O	SC606 serial data	R9
10	O	SC606 serial clock	P10

Port J (touchpad)

Port pin	I/O/F	Description	CPU pin
0	I	up++	H6
1	I	up+	G3
2	I	up	H5
3	I	center	H4
4	I	down	H3
5	I	down+	H7
6	I	down++	J8
7	I	left++	H2
8	I	left+	G5
9	I	left	G7
10	I	right	G2
11	I	right+	J3
12	I	right++	J4

Dock connector

Port pin	Description
1	ground
2	data – (USB2ATA?)
3	data + (USB2ATA?)
4	ground
5	line-out R?
6	line-out L?
7	ground
8	IICCLK *
9	IICSDA *
10	I2SLRCK? *
11	I2SSCLK? *
12	I2SSDI? *
13	I2SSDO? *
14	GPC7: SDI/SDO to DAC switch *
15	GPD1: speaker amp control?
16	GPD0: speaker amp control?
17	GPG13: optiondetect?
18	GPG6 (via resistor R127): RI Onkyo?
19	VSSiarm??: RI Onkyo?
20	GPG14: cradle usb/line-in switch
21	GPF6 & ADC input 2 (3rd) - sync button on cradle
22	GPF7 & ADC input 3 (4th) - CD rip button on cradle
23	data – for usb peripheral
24	data + for usb peripheral
25	data – from usb host
26	data + from usb host
27	GPH8: cradle power control
28	GPF1: cradle USB connected
29	DP5: PCRADLE +5V from cradle
30
31
32
33	NC
34	DP23: PVOUT +4.2V to cradle
35
36	ground from cradle
37	ground
38
39
40

* these pins can be enabled/disabled with H8

Debug connector

Port pin	Description
1	ground
2	nTRST
3	GPH3: RXD0
4	+
5	nRESET
6	TCK
7	TDO
8	TMS
9	GPH2: TXD0
10	TDI