TechFest - PCI Local Bus Technical Summary

Wearable Board Standard Pinout for 120 Pin Connector

This is a preliminary pinout asuming using the 120 pin Hiros FX8 connector.
Some decisions need to be made:

PCI specifies both 5V and 3.3V IO cards with minor differences mechanically and electrically. For wearable use, going with only the 3.3V IO seams like a good idea from a power use standpoint. This does limit the number of available chips to those designed for 3.3V IO, but many laptops already use some sort of internal PCI bus so they are available. A final decision to only go with 3.3VIO or 5V IO needs to be made. Currently 3.3VIO is asumed to be the one that will be used unless 5VIO has some very compelling reason to use it.
Will 64bit transfers be allowed? Selecting the method of providing the additional pins needed will need to be done. Adding a second connector will be needed. A possibility would be to place it parallel to the main connector as close as is reasonable.
Will 66MHz transfers be allowed? This is more to allow the high data rates needed for Video Work. One of the reasons I see for wearable computers is heads up video for a reporter. To allow for a high resolution display one needs to transfer large amounts of data over the PCI bus for viewing of the video stream being captured. This is in addition to the compressed data stream be stored on the HD. Might PCI-X provide the needed signals/etc.? What are the potential pitfalls?
To provide a reasonable eletrical load per board it may be needed to go to the 140 pin Hirose connector. This is due to the 0.4Amp max loading per pin on the hirose connectors. A reasonable loading per board needs to be determined, then selection of connector from that load needs to be determined.

PCI Pin	WBS Pin	5V System Environment		PCI Pin	WBS Pin	3.3V System Environment		Comments
PCI Pin	WBS Pin	B Side	A Side	PCI Pin	WBS Pin	B Side	A Side	Comments
1	1	-12V	TRST#	1	1	-12V	TRST#	32-bit start
2	2	TCK	+12V	2	2	TCK	+12V
3	3	Ground	TMS	3	3	Ground	TMS
4	4	TDO	TDI	4	4	TDO	TDI
5	5	+5V	+5V	5	5	+5V	+5V
6	6	+5V	INTA#	6	6	+5V	INTA#
7	7	INTB#	INTC#	7	7	INTB#	INTC#
8	8	INTD#	+5V	8	8	INTD#	+5V
9	9	PRSNT1#	Reserved	9	9	PRSNT1#	Reserved
10	10	Reserved	+5V (I/O)	10	10	Reserved	+3.3V (I/O)
11	11	PRSNT2#	Reserved	11	11	PRSNT2#	Reserved
12	12	Ground	Ground	12	12	Connector Key		3.3V key
13		Ground	Ground	13		Connector Key		3.3V key
14	13	Reserved	Reserved	14	13	Reserved	Reserved
15	14	Ground	RST#	15	14	Ground	RST#
16	15	CLK	+5V (I/O)	16	15	CLK	+3.3V (I/O)
17	16	Ground	GNT#	17	16	Ground	GNT#
18	17	REQ#	Ground	18	17	REQ#	Ground
19	18	+5V (I/O)	Reserved	19	18	+3.3V (I/O)	Reserved
20	19	AD[31]	AD[30]	20	19	AD[31]	AD[30]
21	20	AD[29]	+3.3V	21	20	AD[29]	+3.3V
22	21	Ground	AD[28]	22	21	Ground	AD[28]
23	22	AD[27]	AD[26]	23	22	AD[27]	AD[26]
24	23	AD[25]	Ground	24	23	AD[25]	Ground
25	24	+3.3V	AD[24]	25	24	+3.3V	AD[24]
26	25	C/BE[3]#	IDSEL	26	25	C/BE[3]#	IDSEL
27	26	AD[23]	+3.3V	27	26	AD[23]	+3.3V
28	27	Ground	AD[22]	28	27	Ground	AD[22]
29	28	AD[21]	AD[20]	29	28	AD[21]	AD[20]
30	29	AD[19]	Ground	30	29	AD[19]	Ground
31	30	+3.3V	AD[18]	31	30	+3.3V	AD[18]
32	31	AD[17]	AD[16]	32	31	AD[17]	AD[16]
33	32	C/BE[2]#	+3.3V	33	32	C/BE[2]#	+3.3V
34	33	Ground	FRAME#	34	33	Ground	FRAME#
35	34	IRDY#	Ground	35	34	IRDY#	Ground
36	35	+3.3V	TRDY#	36	35	+3.3V	TRDY#
37	36	DEVSEL#	Ground	37	36	DEVSEL#	Ground
38	37	Ground	STOP#	38	37	Ground	STOP#
39	38	LOCK#	3.3V	39	38	LOCK#	3.3V
40	39	PERR#	SDONE	40	39	PERR#	SDONE
41	40	+3.3V	SBO#	41	40	+3.3V	SBO#
42	41	SERR#	Ground	42	41	SERR#	Ground
43	42	+3.3V	PAR	43	42	+3.3V	PAR
44	43	C/BE[1]#	AD[15]	44	43	C/BE[1]#	AD[15]
45	44	AD[14]	+3.3V	45	44	AD[14]	+3.3V
46	45	Ground	AD[13]	46	45	Ground	AD[13]
47	46	AD[12]	AD[11]	47	46	AD[12]	AD[11]
48	47	AD[10]	Ground	48	47	AD[10]	Ground
49	48	Ground	AD[09]	49	48	M66EN	AD[09]
50	49	Connector Key		50	49	Ground	Ground	5V key
51		Connector Key		51		Ground	Ground	5V key
52	50	AD[08]	C/BE[0]#	52	40	AD[08]	C/BE[0]#
53	51	AD[07]	+3.3V	53	51	AD[07]	+3.3V
54	52	+3.3V	AD[06]	54	52	+3.3V	AD[06]
55	53	AD[05]	AD[04]	55	53	AD[05]	AD[04]
56	54	AD[03]	Ground	56	54	AD[03]	Ground
57	55	Ground	AD[02]	57	55	Ground	AD[02]
58	56	AD[01]	AD[00]	58	56	AD[01]	AD[00]
59	57	+5V (I/O)	+5V (I/O)	59	57	+3.3V (I/O)	+3.3V (I/O)
60	58	ACK64#	REQ64#	60	58	ACK64#	REQ64#
61	59	+5V	+5V	61	59	+5V	+5V
62	60	+5V	+5V	62	60	+5V	+5V	32-bit end
		Connector Key				Connector Key		64-bit spacer
		Connector Key				Connector Key		64-bit spacer
PCI Pin	WBS Pin	5V System Environment		PCI Pin	WBS Pin	3.3V System Environment		Comments
PCI Pin	WBS Pin	B Side	A Side	PCI Pin	WBS Pin	B Side	A Side	Comments
63		Reserved	Ground	63		Reserved	Ground	64-bit start
64		Ground	C/BE[7]#	64		Ground	C/BE[7]#
65		C/BE[6]#	C/BE[5]#	65		C/BE[6]#	C/BE[5]#
66		C/BE[4]#	+5V (I/O)	66		C/BE[4]#	+3.3V (I/O)
67		Ground	PAR64	67		Ground	PAR64
68		AD[63]	AD[62]	68		AD[63]	AD[62]
69		AD[61]	Ground	69		AD[61]	Ground
70		+5V (I/O)	AD[60]	70		+3.3V (I/O)	AD[60]
71		AD[59]	AD[58]	71		AD[59]	AD[58]
72		AD[57]	Ground	72		AD[57]	Ground
73		Ground	AD[56]	73		Ground	AD[56]
74		AD[55]	AD[54]	74		AD[55]	AD[54]
75		AD[53]	+5V (I/O)	75		AD[53]	+3.3V (I/O)
76		Ground	AD[52]	76		Ground	AD[52]
77		AD[51]	AD[50]	77		AD[51]	AD[50]
78		AD[49]	Ground	78		AD[49]	Ground
79		+5V (I/O)	AD[48]	79		+3.3V (I/O)	AD[48]
80		AD[47]	AD[46]	80		AD[47]	AD[46]
81		AD[45]	Ground	81		AD[45]	Ground
82		Ground	AD[44]	82		Ground	AD[44]
83		AD[43]	AD[42]	83		AD[43]	AD[42]
84		AD[41]	+5V (I/O)	84		AD[41]	+3.3V (I/O)
85		Ground	AD[40]	85		Ground	AD[40]
86		AD[39]	AD[38]	86		AD[39]	AD[38]
87		AD[37]	Ground	87		AD[37]	Ground
88		+5V (I/O)	AD[36]	88		+3.3V (I/O)	AD[36]
89		AD[35]	AD[34]	89		AD[35]	AD[34]
90		AD[33]	Ground	90		AD[33]	Ground
91		Ground	AD[32]	91		Ground	AD[32]
92		Reserved	Reserved	92		Reserved	Reserved
93		Reserved	Ground	93		Reserved	Ground
94		Ground	Reserved	94		Ground	Reserved	64-bit end