HD404669 Datasheet, PDF (52/142 Pages) Hitachi Semiconductor – Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

HD404669 Series
Port mode register B (PMRB: $024)
Bit
3
2
1
0
Initial value
0
0
0
0
Read/Write
Bit name
W
W
W
W
PMRB3 PMRB2 PMRB1 PMRB0
PMRB3
0
1
PMRB2
0
1
R0₃/INT₄ mode selection
R0₃
INT₄
R0₂/INT₃ mode selection
R0₂
INT₃
PMRB0
0
1
R0₀/INT₁ mode selection
R0₀
INT₁
PMRB1
0
1
R0₁/INT₂ mode selection
R0₁
INT₂
Figure 31 Port Mode Register B (PMRB)
Port mode register C (PMRC: $025)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
0
0
0
—
W
W
W
—
PMRC3 PMRC2 PMRC1 Not Used
PMRC3
0
1
D₁₃/INT₀ mode selection
D₁₃
INT₀
PMRC2
0
1
D₁₂/STOPC mode selection
D₁₂
STOPC
PMRC1
0
1
R4₀/EVND mode selection
R4₀
EVND
Figure 32 Port Mode Register C (PMRC)
52