NEC 78K0S/KA1+ Preliminary User's Manual page 58

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Address: FF02H, After reset: 00H (Output latch) R/W
Symbol 7
P2 0
Address: FF03H, After reset: 00H
Symbol 7
P3 0
Address: FF04H, After reset: 00H (Output latch) R/W
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Symbol 7
P4 0
Address: FF0CH, After reset: 00H (Output latch) R/W
Symbol 7
P12 0
Address: FF0DH, After reset: 00H (Output latch) R/W
Symbol 7
P13 0
Pmn
0
1
Note Because P34 is read-only, its reset value is undefined.
(3) Port mode control register 2 (PMC2)
This register specifies the port mode or alternate function (A/D converter) of port 2.
Each bit of the PMC2 register corresponds to each pin of port 2 and can be specified in 1-bit units.
PMC2 is set by using a 1-bit or 8-bit memory manipulation instruction.
Reset input sets PMC2 to 00H.
58
CHAPTER 4 PORT FUNCTIONS
Figure 4-13. Format of Port Register
6 5
0 0
Note Note
(Output latch) R/W
6 5
0 0
6 5
0 P45
6 5
0 0
6 5
0 0
Controls of output data (in output mode)
Output 0
Output 1
Preliminary User's Manual U16898EJ1V0UD
4 3 2
0 P23 P22
4 3 2
P34 0 0
4 3 2
P44 P43 P42
4 3 2
0 P123 P122
4 3 2
0 0 0
m = 2, 3, 4, 12, or 13; n = 0-7
Input data read (in input mode)
Input low level
Input high level
1 0
P21 P20
1 0
P31 P30
1 0
P41 P40
1 0
P121 0
1 0
0 P130