NEC NEC PD78081(A), User Manual

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CHAPTER 6 8-BIT TIMER/EVENT COUNTERS 5 AND 6
(5) Port mode register 10 (PM10)
This register sets port 10 input/output in 1-bit units.
When using the P100/TI5/TO5 and P101/TI6/TO6 pins for timer output, set PM100, PM101, and output latches
of P100 and P101 to 0.
PM10 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets PM10 to FFH.
Figure 6-7. Port Mode Register 10 Format
Caution Set 1 to the bits 2 to 7.
0 1 2 3 4 5 6 7 Symbol
PM100 FF2AH FFH R/W
Address After Reset R/W
PM101 1 1 1 1 1 1 PM10
PM10n P10n Pin Input/Output Mode Selection (n = 0, 1)
0 Output mode (output buffer ON)
1 Input mode (output buffer OFF)