4 cd signal descriptions, 1 pata ide, 2 pci – ADLINK Express-HL2 User Manual
Page 25: Cd signal descriptions

Express-HL2
Page 25
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
3.4.2
PCI
Signal
Pin #
Description
I/O
PU/PD
Comment
PCI_AD0 
PCI_AD1 
PCI_AD2 
PCI_AD3 
PCI_AD4 
PCI_AD5 
PCI_AD6 
PCI_AD7 
PCI_AD8 
PCI_AD9 
PCI_AD10 
PCI_AD11 
PCI_AD12 
C24 
D22 
C25 
D23 
C26 
D24 
C27 
D25 
C28 
D27 
C29 
D28 
C30 
PCI bus multiplexed address and data lines
I/O 3.3V
