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Host Interface
4-2 C156-E205-01EN
4.1 Pin Assignment
The table below lists pin assignments of the interface connector.
Table 4.1 Connector pin assignments (1/2)
Description PIN Signal name
Reset 1 RESET-
Ground 2 Ground
Data bus bit 7 3 DD7
Data bus bit 8 4 DD8
Data bus bit 6 5 DD6
Data bus bit 9 6 DD9
Data bus bit 5 7 DD5
Data bus bit 10 8 DD10
Data bus bit 4 9 DD4
Data bus bit 11 10 DD11
Data bus bit 3 11 DD3
Data bus bit 12 12 DD12
Data bus bit 2 13 DD2
Data bus bit 13 14 DD13
Data bus bit 1 15 DD1
Data bus bit 14 16 DD14
Data bus bit 0 17 DD0
Data bus bit 15 18 DD15
Ground 19 Ground
(keypin) 20 Reserved
DMA Request 21 DMARQ
Ground 22 Ground
I/O Write
Stop during Ultra DMA data bursts
23 DIOW-
STOP
Ground 24 Ground
I/O Read
DMA ready during Ultra DMA data in bursts
Data strobe during Ultra DMA data out bursts
25 DIOR-
HDMARDY-
HSTROBE