Intel BCW1USBPWB Datasheet download pdf (Page 54)

ATA Backplane 1U Server Chassis SR1300

Revision 1.2

Intel order number A94544-004

Pin # I/O Description

22 NC NC_FP_RSV2

23 I FP_NMI_BTN_L

24 O NIC2_LED_ON_ACTIVITY

25 I V_IO_VSYNC_BUFF_FP_L

26 I V_IO_HSYNC_BUFF_FP_L

27 I V_IO_BLUE_CONN_FP

28 PWR GND

29 I V_IO_GREEN_CONN_FP

30 PWR GND

31 O V_IO_RED_CONN_FP

32 I GND

33 NC TP_FP34_P33

34 NC ZZ_V_SWITCH_L

7.2.6 ATA100 Connectors

The ATA backplane has two 40-pin ATA100 connectors. These connectors relay ATA100

signals from the baseboard to the ATA drives. Each connector is used for a separate ATA

channel. Each channel is configured as a bus master. The following table provides the pinout

for both 40-pin ATA100 connectors.

Table 27. 40-Pin ATA 100 Connector Pinout

Pin Name Pin Name

1 RESET_L 21 IDEDRQ

2 GND 22 GND

3 DD7 23 DIOW_L

4 DD8 24 GND

5 DD6 25 DIOR_L

6 DD9 26 GND

7 DD5 27 IORDY

8 DD10 28 CSEL

9 DD4 29 IDEDAK_L

10 DD11 30 GND

11 DD3 31 IDEIRQ

12 DD12 32 Reserved (nc)

13 DD2 33 IDESA1

14 DD13 34 PDIAG_L

15 DD1 35 IDESA0

16 DD14 36 IDESA2

17 DD0 37 IDECS1_L

18 DD15 38 IDECS3_L

19 GND 39 IDEHDACT_L

20 Keyed 40 GND

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 78 79

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Intel BCW1USBPWB Datasheet Page 54

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