Parallel Port (Optional)
8-15
Figure 8-3. Cable Assembly #314A002-12 for Serial Port B
8.3.5 Handshaking Jumper
A jumper on the BajaPPC-750 circuit board determines whether or not EIA-232
handshaking is enabled as follows:
8.4 Parallel Port (Optional)
The Ultra I/O controller provides a standard parallel port, which is controlled by
software. The parallel port signals are available at VMEbus connector P2, row C
(see Table 6-10 for pinouts).
NOTE.
The standard BajaPPC-750 configuration does not provide parallel
port signals. These signals are available only with the optional (Motor-
ola-compatible) pinout configuration on P2.
The following sections briefly describe eight addressable registers that determine
the parallel port functions. Please refer to the
Ultra I/O Controller User’s Manual
for
complete information on the parallel port features.
Table 8-9. EIA-232 Handshaking Configuration Jumper
Jumper
1
1. Spare jumpers are located at JP2 (board revs. 1 and 21 only).
Function
Options
Default Configuration
JP3
Selects whether EIA-232
handshaking is active
JP3:1–2, False (–12V).
JP3:2–3, True (+12V).
JP3:2–3,
True (+12V)
PIN 1
RS-232
Serial Port B
CONDUCTOR 1
CONDUCTOR 14
14-Pin Transition Connector
(no strain relief, connector up)
AMP P/N 188836-1
Keying Plug in Pin 1
AMP P/N 499712-1
14-Conductor Ribbon Cable
AMP P/N 1-57040-4
25-Pin Female "D" Connector
(with strain relief, connector up)
AMP P/N 747052-2
Side View
Содержание BajaPPC-750
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