Chapter 3 – DFI CR902-B User Manual
Page 18
www.dfi .com
Chapter 3 Hardware Installation
18
Chapter 3
Signal
Pin#
Pin Type
Pwr Rail /Tolerance
PU/PD
Description
IDE_D0
D7
IDE_D1
C10
IDE_D2
C8
IDE_D3
C4
IDE_D4
D6
IDE_D5
D2
IDE_D6
C3
IDE_D7
C2
PD 10K: to GND
IDE_D8
C6
IDE_D9
C7
IDE_D10
D3
IDE_D11
D4
IDE_D12
D5
IDE_D13
C9
IDE_D14
C12
IDE_D15
C5
IDE_A0
D13
IDE_A1
D14
IDE_A2
D15
IDE_IOW#
D9
O CMOS
3.3V / 3.3V
I/O write line to IDE device. Data latched on trailing (rising) edge.
IDE_IOR#
C14
O CMOS
3.3V / 3.3V
I/O read line to IDE device.
IDE_REQ
D8
I CMOS
3.3V / 5V
PD 5.6K: to GND
IDE Device DMA Request. It is asserted by the IDE device to request a data transfer.
IDE_ACK#
D10
O CMOS
3.3V / 3.3V
IDE Device DMA Acknowledge.
IDE_CS1#
D16
O CMOS
3.3V / 3.3V
IDE Device Chip Select for 1F0h to 1FFh range.
IDE_CS3#
D17
O CMOS
3.3V / 3.3V
IDE Device Chip Select for 3F0h to 3FFh range.
IDE_IORDY
C13
I CMOS
3.3V / 5V
PU 4.7K: to 3.3V
IDE device I/O ready input. Pulled low by the IDE device to extend the cycle.
IDE_RESET#
D18
O CMOS
3.3V / 3.3V
Reset output to IDE device, active low.
IDE_IRQ
D12
I CMOS
3.3V / 5V
PD 10K: to GND
Interrupt request from IDE device.
IDE_CBLID#
D77
I CMOS
3.3V / 5V
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.
Signal
Pin#
Pin Type
Pwr Rail /Tolerance
PU/PD
Description
SATA0_TX+
A16
O SATA
AC coupled on Module
SATA0_TX-
A17
O SATA
AC coupled on Module
SATA0_RX+
A19
I SATA
AC coupled on Module
SATA0_RX-
A20
I SATA
AC coupled on Module
SATA1_TX+
B16
O SATA
AC coupled on Module
SATA1_TX-
B17
O SATA
AC coupled on Module
SATA1_RX+
B19
I SATA
AC coupled on Module
SATA1_RX-
B20
I SATA
AC coupled on Module
SATA2_TX+
A22
O SATA
AC coupled on Module
SATA2_TX-
A23
O SATA
AC coupled on Module
SATA2_RX+
A25
I SATA
AC coupled on Module
SATA2_RX-
A26
I SATA
AC coupled on Module
SATA3_TX+
B22
O SATA
AC coupled on Module
SATA3_TX-
B23
O SATA
AC coupled on Module
SATA3_RX+
B25
I SATA
AC coupled on Module
SATA3_RX-
B26
I SATA
AC coupled on Module
ATA_ACT#
A28
I/O CMOS
3.3V / 3.3V
PU 10K: to 3.3V
ATA (parallel and serial) or SAS activity indicator, active low.
Serial ATA or SAS Channel 3 transmit differential pair.
Serial ATA or SAS Channel 3 receive differential pair.
Serial ATA or SAS Channel 1 receive differential pair.
Serial ATA or SAS Channel 2 transmit differential pair.
Serial ATA or SAS Channel 2 receive differential pair.
SATA Signals Descriptions
Serial ATA or SAS Channel 0 transmit differential pair.
Serial ATA or SAS Channel 0 receive differential pair.
Serial ATA or SAS Channel 1 transmit differential pair.
IDE Signals Descriptions
I/O CMOS
3.3V / 5V
Bidirectional data to / from IDE device.
O CMOS
3.3V / 3.3V
Address lines to IDE device.