Serial Port Interface, Connector Assembly P1 - Xilinx ML310 User Manual

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Serial Port Interface, connector assembly P1

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Table 2-13 shows the ALi Parallel Port connections to P1, DB25.
Table 2-13: ALi South Bridge Parallel Port pinout P1 (DB25)
P1 (DB25)
Signal Name
Pin No.
STROBE_N 1
D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
ACK_N 10
BUSY 11
PEND 12
SELECT 13
AUTOFD_N 14
ERROR_N 15
INIT_N 16
SLCTIN_N 17
GND 18, 19, 20,
21, 22, 23,
24, 25
In addition to the serial port accessible via the XC2VP30 FPGA, the ALi M1535D+ provides
access over the PCI Bus to two serial ports. The ALi M1535D+ employs 16450/16550
Compatible UARTs with Send/Receive16-byte FIFOs. The two Serial ports are connected
to the ALi M1535D+ device via two male DB9 connectors (P1). The DB9 connectors are
configured as DTE interfaces and meet the EIA/TIA-574 standard.
The DB9 male connectors are labeled Serial Port A and B in the ML310 schematics. The DB9
connectors are part of the P1 connector assembly. Please note that Serial Port B is located
adjacent to the PS/2 connector where COM1 in a legacy PC is traditionally located. The
two DB9 serial port connectors are labeled on the ML310 board silk-screen near the P1
connector assembly. Please review the ALi M1535D+ Data sheets for more detailed
information.
Chapter 2: ML310 Embedded Development Platform
Description
Strobe
Data Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
Acknowledge
Busy
Paper End
Select
Autofeed
Error
Initialize
Select In
Ground
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ML310 User Guide
UG068 (v1.01) August 25, 2004