Motorola MVME1X7P - Manual (Page 244)

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PCCchip2
3
INP Printer Input Prime - This bit controls the input prime
signal. When this bit is high, the input prime signal is
activated. When this bit is low, the input prime signal is
not activated. Software must control the timing of the
printer input prime signal.
DOEN Printer Data Output Enable - This bit controls the external
data buffer for the printer port. When this bit is high, the
external printer data buffer is enabled. When this bit is
low, the external printer data buffer is disabled. For
normal connection to a printer, DOEN should be set to 1.
Chip Speed Register
CS31-CS16 This read-only register is for factory test purposes only.
ADR/SIZ $FFF42038 (16-bits)
BIT 31-16
NAME CS31 - CS16
OPER R
RESET X