IBM 770 manual System Board, Type, Signal Name

Pin	Type	Signal Name	Pin	Type	Signal Name
001	W	VCC5A	061	W	Dock-PWR
002	W	VCC5A	062	W	Dock-PWR
003	P	-PCIRST	063	W	Dock-PWR
004	G	GND	064	W	Dock-PWR
005	P	-ACK_GNT	065	A	L_OUT
006	P	-CLKRUN	066	A	AGND
007	G	GND	067	A	L_IN
008	P	AD30	068	G	GND
009	P	AD28	069	K	KBDATA
010	G	GND	070	K	MSDATA
011	P	AD26	071	K	MSCLK
012	P	AD24	072	G	GND
013	G	GND	073	S	-RI
014	P	AD23	074	S	-CTS
015	P	AD21	075	S	-DTR
016	G	GND	076	S	RXD
017	P	AD19	077	G	GND
018	P	AD17	078	P	AD0
019	G	GND	079	P	AD2
020	P	CBE2	080	G	GND
021	P	-IRDY	081	P	AD4
022	G	GND	082	P	AD6
023	P	-DEVSEL	083	G	GND
024	R	Reserved	084	P	CBE0
025	G	GND	085	P	AD9
026	P	-SERR	086	G	GND
027	P	PAR	087	P	AD11
028	R	Reserved	088	P	AD13
029	R	Reserved	089	R	R/-S
030	R	Reserved	090	R	Reserved
031	R	Reserved	091	R	Reserved
032	P	AD14	092	R	Reserved
033	P	AD12	093	P	AD15
034	G	GND	094	P	CBE1
035	P	AD10	095	G	GND
036	P	AD8	096	P	-PERR
037	G	GND	097	P	-STOP
038	P	AD7	098	G	GND
039	P	AD5	099	P	-TRDY
040	G	GND	100	P	-FRAME
041	P	AD3	101	G	GND
042	P	AD1	102	P	AD16
043	G	GND	103	P	AD18
044	P	PRDY	104	G	GND
045	R	Reserved	105	P	AD20
046	G	GND	106	P	AD22
047	S	-DCD	107	G	GND
048	S	TXD	108	P	CBE3
049	S	-RTS	109	P	AD25
050	S	-DSR	110	G	GND
051	W	KBD_+5V	111	P	AD27
052	K	KBCLK	112	P	AD29
053	G	GND	113	G	GND
054	A	R_IN	114	P	AD31
055	A	AGND	115	P	-REQ
056	A	R_OUT	116	G	GND
057	W	Dock-POR	117	P	PCICLK
058	W	Dock-POR	118	C	-BATOPDSBL
059	W	Dock-POR	119	W	VCC5B
060	W	Dock-POR	120	W	VCC5B

2-10 System Board