PCI
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PCI
Bus, resembling Conventional PCI 2.3, directly connected to South Bridge, with 80 exposed pads
Major differences from PCI standard:
- smaller formfactor (80 pin, instead of miniPCI 100P-type I/II or MiniPCI 124P-Type III)
- no use of miniPCI standard sideband signals for audio and communications
- no support of the miniPCI standard CLKRUN# signal defined in the PCI Mobile Design Guide
- no support for optional JTAG signals, nor for the 64-bit PCI extension defined in the PCI Local Bus Specification
80 pin miniPCI pad layout
CN3208 80P on CECHAxx/CECHBxx COK-001 and CECHCxx/CECHExx COK-002
80P Pin |
70P Pin |
Usage | 100P Pin (Type I/II) |
124P Pin (Type III) |
Remark |
---|---|---|---|---|---|
01 | 35 | +3.3V_PCI | 03, 08, 12, 15, 24, 47, 54, 72, 73 | 19, 24, 28, 31, 40, 63, 70, 88, 89 (not 124) | VCC |
02 | 70 | GND | 7, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
03 | - | PIO15 | ? | ||
04 | - | PIO11 | ? | ||
05 | - | PIO14 | ? | ||
06 | - | PIO10 | ? | ||
07 | - | PIO13 | ? | ||
08 | - | PIO9 | ? | ||
09 | - | PIO12 | ? | ||
10 | - | PIO8 | ? | ||
11 | 01 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
12 | 36 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
13 | 02 | /INTA | 04 | 20 | Interrupt line A (open-drain) |
14 | 37 | /INTB | 01 | 17 | Interrupt line B (open-drain) |
15 | 03 | /INTC | - | - | Interrupt line C (open-drain) |
16 | 38 | /INTD | - | - | Interrupt line D (open-drain) |
17 | 04 | /RST | 10 | 26 | Reset |
18 | 39 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
19 | 05 | /GNT | 14 | 30 | Bus grant from motherboard to card |
20 | 40 | CLK | 09 | 25 | |
21 | 06 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
22 | 41 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
23 | 07 | /PME | 18 | 34 | Power management event. 3.3 V, open drain, active low |
24 | 42 | /REQ | Bus request from card to motherboard | ||
25 | 08 | AD30 | 22 | 38 | Address/Data 30 |
26 | 43 | AD31 | 17 | 33 | Address/Data 31 |
27 | 09 | AD28 | 26 | 42 | Address/Data 28 |
28 | 44 | AD29 | 19 | 35 | Address/Data 29 |
29 | 10 | AD26 | 28 | 44 | Address/Data 26 |
30 | 45 | AD27 | 23 | 39 | Address/Data 27 |
31 | 11 | AD24 | 30 | 46 | Address/Data 24 |
32 | 46 | AD25 | 25 | 41 | Address/Data 25 |
33 | 12 | IDSEL | IDSEL is asserted by PCI system to select the connected device during configuration read and write transactions. | ||
34 | 47 | /C/BE3 | Command/Byte Enable 3 // These inputs are the multiplexed Bus Command and Byte Enable signals on the PCI bus. | ||
35 | 13 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
36 | 48 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
37 | 14 | AD22 | 36 | 52 | Address/Data 22 |
38 | 49 | AD23 | 31 | 47 | Address/Data 23 |
39 | 15 | AD20 | 38 | 54 | Address/Data 20 |
40 | 50 | AD21 | 35 | 51 | Address/Data 21 |
41 | 16 | AD18 | 42 | 58 | Address/Data 18 |
42 | 51 | AD19 | 37 | 53 | Address/Data 19 |
43 | 17 | AD16 | 44 | 60 | Address/Data 16 |
44 | 52 | AD17 | 41 | 57 | Address/Data 17 |
45 | 18 | /FRAME | 48 | 64 | FRAME is driven by the current master to indicate the beginning and duration of an access. While FRAME is asserted, data transaction continues. When FRAME is deasserted, the transaction is in the final data phase. |
46 | 53 | /C/BE2 | 43 | 59 | Command/Byte Enable 3 // These inputs are the multiplexed Bus Command and Byte Enable signals on the PCI bus. |
47 | 19 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
48 | 54 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
49 | 20 | /TRDY | 50 | 66 | TRDY indicates the PCI bus slave can complete the current data phase of the transaction. |
50 | 55 | /IORDY | 45 | 61 | IRDY indicates the PCI bus master can complete the current data phase of the transaction. |
51 | 21 | /STOP | 52 | 68 | STOP indicates the connected device is requesting that the current master stop the current transaction. |
52 | 56 | /DEVSEL | 56 | 72 | The connected device drives this signal active to indicate that it has decoded its address as the target of the current access. |
53 | 22 | PAR | 40 | 56 | The connected device drives PAR in read data phases for parity checking. |
54 | 57 | /PERR | 55 | 71 | The PERR pin reports data parity errors during data read phases. Even parity over AD[31:00] and C/BE[3:0]# |
55 | 23 | AD15 | 60 | 76 | Address/Data 15 |
56 | 58 | /SERR | 51 | 67 | System error |
57 | 24 | AD13 | 62 | 78 | Address/Data 13 |
58 | 59 | /C/BE1 | 57 | 73 | Command/Byte Enable 1 // These inputs are the multiplexed Bus Command and Byte Enable signals on the PCI bus. |
59 | 25 | AD11 | 64 | 80 | Address/Data 11 |
60 | 60 | AD14 | 59 | 75 | Address/Data 14 |
61 | 26 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
62 | 61 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
63 | 27 | AD09 | 68 | 84 | Address/Data 09 |
64 | 62 | AD12 | 63 | 79 | Address/Data 12 |
65 | 28 | /C/BE0 | 70 | 86 | Command/Byte Enable 0 // These inputs are the multiplexed Bus Command and Byte Enable signals on the PCI bus. |
66 | 63 | AD10 | 65 | 81 | Address/Data 10 |
67 | 29 | AD06 | 74 | 90 | Address/Data 06 |
68 | 64 | AD08 | 69 | 85 | Address/Data 08 |
69 | 30 | AD04 | 76 | 92 | Address/Data 04 |
70 | 65 | AD07 | 71 | 87 | Address/Data 07 |
71 | 31 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
72 | 66 | GND | 07, 11, 16, 21, 33, 34, 39, 46, 53, 58, 61, 66, 67, 85, 86, 98 | 23, 27, 32, 37, 49, 50, 55, 62, 69, 74, 77, 82, 83, 101, 102, 114 | Ground |
73 | 32 | AD02 | 78 | 94 | Address/Data 02 |
74 | 67 | AD05 | 75 | 91 | Address/Data 05 |
75 | 33 | AD00 | 80 | 96 | Address/Data 00 |
76 | 68 | AD03 | 79 | 95 | Address/Data 03 |
77 | - | SIORXD[0] | Southbridge Serial Receive | ||
78 | 69 | AD01 | 83 | 99 | Address/Data 01 |
79 | - | SIOTXD[0] | Southbridge Serial Transceive | ||
80 | 34 | /SW_PCI | ?switch PCI? |
South Bridge serial
Pad | Name | Usage | Remark |
---|---|---|---|
JL9385 | +3.3V_SB_VDDIO | VCC | |
JL9386 | GND | Ground | |
JL9387 | SB_SIO0-RXD | Receive | |
JL9388 | SB_SIO0-TXT | Tranceive |
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