Copyright © 2006 congatec AG
C800m10
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Table 19 IDE Signal Descriptions
IDE
Description
I/O
PU/PD
Comment
IDE_D[0:15]
Bidirectional data to / from IDE device.
I/O 3.3V
PD 10k on PIDE_D7
IDE_A[0:2]
Address lines to IDE device.
O 3.3V
IDE_IOW#
I/O write line to IDE device. Data latched on trailing (rising) edge.
O 3.3V
IDE_IOR#
I/O read line to IDE device.
O 3.3V
IDE_REQ
IDE Device DMA Request. It is asserted by the IDE device to request a data transfer.
I 3.3V
PD 10k
IDE_ACK#
IDE Device DMA Acknowledge.
O 3.3V
IDE_CS1#
IDE Device Chip Select for 1F0h to 1FFh range.
O 3.3V
IDE_CS3#
IDE Device Chip Select for 3F0h to 3FFh range.
O 3.3V
IDE_IORDY
IDE device I/O ready input. Pulled low by the IDE device to extend the cycle.
I 3.3V
PU 10k 3.3V
IDE_RESET#
Reset output to IDE device, active low.
O 5V
IDE_IRQ
Interrupt request from IDE device.
I 3.3V
PU 10k 3.3V
IDE_CBLID#
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
PU 10k 3.3V
Table 20 PCI Express Signal Descriptions (x16 Graphics)
Signal
Description
I/O
PU/PD Comment
PEG_RX[0-15]+
PEG_RX[0-15]-
PCI Express Graphics Receive Input differential pairs. Some of these lines are multiplexed with SDVO lines.
Note: Can also be used as PCI Express Receive Input differential pairs 16 through 31 known as
PCIE_RX[16-31] + and -.
I PCIE
Not supported
PEG_TX[0-15]+
PEG_TX[0-15]-
PCI Express Graphics Transmit Output differential pairs. Some of these lines are multiplexed with SDVO lines.
Note: Can also be used as PCI Express Transmit Output differential pairs 16 through 31 known as PCIE_TX[16-31]
+ and -.
O PCIE
Not supported
PEG_LANE_RV# PCI Express Graphics lane reversal input strap. Pull low on the carrier board to reverse lane order. Be aware that
the SDVO lines that share this interface do not necessarily reverse order if this strap is low.
I
Not supported
PEG_ENABLE# Strap to enable PCI Express x16 external graphics interface. Pull low to disable internal graphics and enable the x16
interface.
I
Not supported
