Connectors - Motorola MVME197DP User Manual

Configuration Switch S6: Serial Port 4 Clock Select (S6-1, S6-2)
Serial port 4 can be configured to use clock signals provided by the RTXC4 and
TRXC4 signal lines. Switch segments S6-1 and S6-2 on the MVME197DP/SP
configures serial port 4 to drive or receive TRXC4 and RTXC4, respectively.
Factory configuration is with serial port 4 set to receive both signals (open).
The remaining configuration of the clock lines is accomplished by using the
Serial Port 4 Clock Configuration Select header on the MVME712M transition
module. Refer to the MVME712M Transition Module and P2 Adapter Board
User's Manual for configuration of that header.
Receive TRXC4

Connectors

The MVME197DP/SP has two 64-position DIN connectors: P1 and P2.
Connector P1 rows A, B, C, and connector P2 row B provide the VMEbus
interconnection. Connector P2 rows A and C provide the interconnect to the
SCSI bus, the serial ports, the Ethernet interface, and the Centronics printer.
The 249-pin mezzanine connector J1 (refer to the note below) provides the
MVME197DP/SP modules series with an MC88110 bus interface for
expansion memory. 32MB to 256MB expansion memory mezzanine modules
are available for field upgrades. The MVME197 supports the addition of up to
two memory expansion modules. Each module requires a VMEbus slot but
does not physically connect to the VMEbus. The expansion memory has the
same high speed access as the onboard main memory.
MVME197/D1
Switch S6
1
O
N
(FACTORY CONFIGURATION)
Switch S6
1
O
N
Drive TRXC4
Hardware Preparation
2
CLOSED
OPEN
Receive RTXC4
2
CLOSED
OPEN
Drive RTXCC4
2
2-5