ML410 Embedded Development Platform
www.xilinx.com
63
UG085 (v1.7.2) December 11, 2008
Detailed Description
R
Parallel Port Interface Connector Assembly (P1)
The parallel port interface of the ALi South Bridge is connected to a 25-pin connector,
female DB25, which is part of the P1 connector assembly. The ALi supports
various parallel port modes such as
standard parallel port
(SPP),
enhanced parallel port
(EPP),
and IEEE 1284 compatible ECP. The P1, female DB25, connector pinout is configured as per
IEEE Std. 1284-1994
.
Table 2-27
shows the ALi parallel port connections.
USB Connector Assembly (J3)
The USB is an implementation of the
Universal Serial Bus Specification Version 1.0a
(see
www.usb.org
) that contains two PCI Host Controllers and an integrated Root Hub.
The two USB connectors, A/B, are part of the J3 connector assembly and are USB Type-A
plugs.
Table 2-27:
ALi South Bridge Parallel Port Connections
Signal Name
DB25 Pin (P1)
Description
PP_STROBE_N
1
Strobe
PP_DATA0
2
Data Bit 0
PP_DATA1
3
Data Bit 1
PP_DATA2
4
Data Bit 2
PP_DATA3
5
Data Bit 3
PP_DATA4
6
Data Bit 4
PP_DATA5
7
Data Bit 5
PP_DATA6
8
Data Bit 6
PP_DATA7
9
Data Bit 7
PP_ACK_N
10
Acknowledge
PP_BUSY
11
Busy
PP_PEND
12
Paper End
PP_SELECT
13
Select
PP_AUTOFD_N
14
Autofeed
PP_ERROR_N
15
Error
PP_INIT_N
16
Initialize
PP_SLCTIN_N
17
Select In
GND
18, 19, 20, 21, 22,
23, 24, 25
Ground
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