Specifications
PC/II+p Board Technical Reference Manual 47
MT002615 ©1999-2001, Megatel Computer Corporation
7.12.1 IDE Interface Pinout
Table 18 Signals – J903 – IDE/ATA Interface
PIN NAME PIN# SIGNAL NAME SIGNAL DESCRIPTION
A1-DA0
a6 Address Bus 0
This signal is Address Bit 0 of the ATA Address Bus
that is connected to IDE Channel.
A1-DA1
b6 Address Bus 1
This signal is Address Bit 1 of the ATA Address Bus
that is connected to IDE Channel.
A1-DA2
e7 Address Bus 2
This signal is Address Bit 2 of the ATA Address Bus
that is connected to IDE Channel.
A1-CS0#
d7 Chip Select 1 for Ch 0
This is one of the two chip select signals from the host
used to select the Command Block registers. When
A1-DMACK# is asserted, A1-CS0# and A1-CS1# shall
be negated and transfers shall be 16-bits wide.
A1-CS1#
c7 Chip Select 3 for Ch 1
This is one of the two chip select signals from the host
used to select the Command Block registers. When
A1-DMACK# is asserted, A1-CS0# and A1-CS1# shall
be negated and transfers shall be 16-bits wide.
A1-DD0
a4 Data Bus 0 Bidirectional Data Bit 0 between Host/Device
A1-DD1
c4 Data Bus 1 Bidirectional Data Bit 1 between Host/Device
A1-DD2
e4 Data Bus 2 Bidirectional Data Bit 2 between Host/Device
A1-DD3
b3 Data Bus 3 Bidirectional Data Bit 3 between Host/Device
A1-DD4
d3 Data Bus 4 Bidirectional Data Bit 4 between Host/Device
A1-DD5
a2 Data Bus 5 Bidirectional Data Bit 5 between Host/Device
A1-DD6
c2 Data Bus 6 Bidirectional Data Bit 6 between Host/Device
A1-DD7
e2 Data Bus 7 Bidirectional Data Bit 7 between Host/Device
A1-DD8
d2 Data Bus 8 Bidirectional Data Bit 8 between Host/Device
A1-DD9
b2 Data Bus 9 Bidirectional Data Bit 9 between Host/Device
A1-DD10
e3 Data Bus 10 Bidirectional Data Bit 10 between Host/Device
A1-DD11
c3 Data Bus 11 Bidirectional Data Bit 11 between Host/Device
A1-DD12
a3 Data Bus 12 Bidirectional Data Bit 12 between Host/Device
A1-DD13
d4 Data Bus 13 Bidirectional Data Bit 13 between Host/Device
A1-DD14
b4 Data Bus 14 Bidirectional Data Bit 14 between Host/Device
A1-DD15
e5 Data Bus 15 Bidirectional Data Bit 15 between Host/Device