Kontron KTG41/ATXu, Руководство пользователя

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3.6 IDE Hard Disk Connector (PATA)
The IDE (40 pin IDC) connector can be used for connection of two primary IDE drives like standard 3½” hard
disks or CD-ROM drives.
The parallel ATA harddisk controller is shared between the PATA connector and the Hyperflash adapter
(Accessory). Hyperflash adapter and PATA disk are not supported at the same time.
The hard disk controllers support Bus master IDE, ultra DMA 33/66/100 MHz and standard operation modes.
For support of ultra DMA 33/66/100 MHz, an 80 wire cable is required.
Note
Pull
U/D
Ioh/
Iol
Type Signal PIN Signal Type
Ioh/
Iol
Pull
U/D
Note
- TBD O RESET_P# 1 2 GND PWR - -
- TBD IO DA7 3 4 DA8 IO TBD -
- TBD IO DA6 5 6 DA9 IO TBD -
- TBD IO DA5 7 8 DA10 IO TBD -
- TBD IO DA4 9 10 DA11 IO TBD -
- TBD IO DA3 11 12 DA12 IO TBD -
- TBD IO DA2 13 14 DA13 IO TBD -
- TBD IO DA1 15 16 DA14 IO TBD -
- TBD IO DA0 17 18 DA15 IO TBD -
- - PWR GND 19 20 KEY - - -
- - I DDRQA 21 22 GND PWR - -
- TBD O IOWA# 23 24 GND PWR - -
- TBD O IORA# 25 26 GND PWR - -
4K7 - I IORDYA 27 28 GND PWR - -
- - O DDACKA# 29 30 GND PWR - -
10K - I HDIRQA 31 32 NC - - -
- TBD O DAA1 33 34 CBLIDA# I -
- TBD O DAA0 35 36 DAA2 O TBD -
- TBD O HDCSA0# 37 38 HDCSA1# O TBD -
- - I HDACTA# 39 40 GND PWR - -
Signal Description
DAA2..0 Address lines, used to address the I/O registers in the IDE hard disk.
HDCSA1..0# Hard Disk Chip-Select. HDCS0# selects the primary hard disk.
DA15..8 High part of data bus.
DA7..0 Low part of data bus.
IORA# I/O Read.
IOWA# I/O Write.
IORDYA# This signal may be driven by the hard disk to extend the current I/O cycle.
RESETA# Reset signal to the hard disk.
HDIRQA Interrupt line from hard disk.
CBLIDA This input signal (CaBLe ID) is used to detect the type of attached cable: 80-wire cable
when low input and 40-wire cable when 5V via 10Kohm (pull-up resistor).
DDREQA Disk DMA Request might be driven by the IDE hard disk to request bus master access to
the PCI bus. The signal is used in conjunction with the PCI bus master IDE function and is
not associated with any PC-AT bus compatible DMA channel.
DDACKA# Disk DMA Acknowledge. Active low signal grants IDE bus master access to the PCI bus.
HDACTA# Signal from hard disk indicating hard disk activity. The signal level depends on the hard
disk type, normally active low. The signals from primary and secondary controller are
routed together through diodes and passed to the connector FEATURE.