Cd signal descriptions, Pata ide – ADLINK Express-IBE2 User Manual
Page 27

Express-IBE2
Page 27
3.4. CD Signal Descriptions
3.4.1. PATA IDE
Signal
Pin Description
I/O
PU/PD
Comment
IDE_D0
IDE_D1
IDE_D2
IDE_D3
IDE_D4
IDE_D5
IDE_D6
IDE_D7
IDE_D8
IDE_D9
IDE_D10
IDE_D11
IDE_D12
IDE_D13
IDE_D14
IDE_D15
D7
C10
C8
C4
D6
D2
C3
C2
C6
C7
D3
D4
D5
C9
C12
C5
Bidirectional data to / from IDE device.
I/O
3.3V
IDE_A0
D13 Address lines to IDE device.
O 3.3V
IDE_A1
D14 Address lines to IDE device.
O 3.3V
IDE_A2
D15 Address lines to IDE device.
O 3.3V
IDE_IOW#
D9
I/O write line to IDE device. Data latched on trailing (rising) edge.
O 3.3V
IDE_IOR#
C14 I/O read line to IDE device.
O 3.3V
IDE_REQ
D8
IDE Device DMA Request. It is asserted by the IDE device to request a data transfer. I 3.3V
IDE_ACK#
D10 IDE Device DMA Acknowledge.
O 3.3V
IDE_CS1#
D16 IDE Device Chip Select for 1F0h to 1FFh range.
O 3.3V
IDE_CS3#
D17 IDE Device Chip Select for 3F0h to 3FFh range.
O 3.3V
IDE_IORDY
C13 IDE device I/O ready input. Pulled low by the IDE device to extend the cycle.
I 3.3V
PU 4k7 3.3V
IDE_RESET# D18 Reset output to IDE device, active low.
O 3.3V
IDE_IRQ
D12 Interrupt request from IDE device.
I 3.3V
PD 10k shall
IDE_CBLID# D77 Input from off-module hardware indicating the type of IDE cable being used. High
indicates a 40-pin cable used for legacy IDE modes. Low indicates that an 80-pin
cable with interleaved grounds is used. Such a cable is required for Ultra-DMA 66,
100 and 133 modes.
I 3.3V