Seagate ST1.2 ST1.2 Series Product Manual - Page 33

Flex interface connector signals, Table 9

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4.1.1 Flex interface connector signals The following table summarizes the signal on the Seagate Flex interface connector. For a detailed description of these signals, refer to Draft ATA-7 Standard. Table 9: Flex interface connector signals Pin Signal Description 1 Ground Ground 2 DD11 Data bus bit 11 3 DD10 Data bus bit 10 4 DD8 Data bus bit 8 5 RESET- Reset 6 DD14 Data bus bit 7 DD15 Data bus bit 8 IORDY- I/O Ready DMA ready during Ultra DMA data-in bursts Data strobe during Ultra DMA data-out bursts 9 INTRQ Interrupt request 10 DA1 Device address bit 1 11 GROUND Ground 12 DA2 Device address bit 2 13 DA0 Device address bit 0 14 DIOW- I/O Write Stop during Ultra DMA data bursts 15 GROUND Ground 16 DIOR- I/O Read DMA ready during Ultra DMA data-in bursts Data strobe during Ultra DMA data-out bursts 17 GROUND Ground 18 PDIAG- Passed diagnostics 19 GROUND Ground 20 DASP- Device active or slave present 21 GROUND Ground 22 CS1- Chip select 0 23 GROUND Ground ST1.2 Series Product Manual, Rev. B 27

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ST1.2 Series Product Manual, Rev. B
27
4.1.1
Flex interface connector signals
The following table summarizes the signal on the Seagate Flex interface connector. For a detailed description
of these signals, refer to
Draft ATA-7 Standard
.
Table 9:
Flex interface connector signals
Pin
Signal
Description
1
Ground
Ground
2
DD11
Data bus bit 11
3
DD10
Data bus bit 10
4
DD8
Data bus bit 8
5
RESET-
Reset
6
DD14
Data bus bit
7
DD15
Data bus bit
8
IORDY-
I/O Ready
DMA ready during Ultra DMA data-in bursts
Data strobe during Ultra DMA data-out bursts
9
INTRQ
Interrupt request
10
DA1
Device address bit 1
11
GROUND
Ground
12
DA2
Device address bit 2
13
DA0
Device address bit 0
14
DIOW-
I/O Write
Stop during Ultra DMA data bursts
15
GROUND
Ground
16
DIOR-
I/O Read
DMA ready during Ultra DMA data-in bursts
Data strobe during Ultra DMA data-out bursts
17
GROUND
Ground
18
PDIAG-
Passed diagnostics
19
GROUND
Ground
20
DASP-
Device active or slave present
21
GROUND
Ground
22
CS1-
Chip select 0
23
GROUND
Ground