Port Mode Register Format - NEC PD78081(A) User Manual

Symbol 7 6 5
PM0 1 1 1
PM1
PM17 PM16 PM15 PM14 PM13 PM12 PM11 PM10
PM3 PM37 PM36 PM35 PM34 PM33 PM32 PM31 PM30
PM5 PM57 PM56 PM55 PM54 PM53 PM52 PM51 PM50
PM7 1 1 1
PM10 1 1 1
Caution Set 1 to the bits 0, 4 to 7 of PM0, bits 3 to 7 of PM7 and bits 2 to 7 of PM10.
CHAPTER 4 PORT FUNCTIONS
Figure 4-10. Port Mode Register Format
4 3 2 1
1 PM03 PM02 PM01
1 1 PM72 PM71 PM70
1 1 1 PM101 PM100
After
Reset
0 Address
1 FF20H FFH
FF21H FFH
FF23H FFH
FF25H FFH
FF27H FFH
FF2AH FFH
Pmn Pin Input/Output Mode Selection
PMmn
(m = 0, 1, 3, 5, 7, 10 : n = 0 to 7)
0 Output mode (output buffer ON)
1 Input mode (output buffer OFF)
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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