E202075_HD404889 Datasheet, PDF (94/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
• Port mode register 2 (PMR2: $00A):
Port mode register 2 (PMR2) is a write-only register used to set the function of the R1₀/EVNB and
R1₃/TOB pins as shown in figure 45.
Port mode register 2 (PMR2) is reset to $0 by an MCU reset.
Port mode register 2 (PMR2: $00A)
Bit
Read/Write
Initial value on reset
Bit name
3
W
0
PMR23
2
W
0
PMR22
1
W
0
PMR21*
0
W
0
PMR20
PMR20 R10/EVNB pin mode selection
0
R10
1
EVNB
PMR21
0
1
R11/EVND pin mode selection
R11
EVND
PMR22
0
1
R12/BUZZ pin mode selection
R12
BUZZ
PMR23
0
1
R13/TOB pin mode selection
R13
TOB
Note: * Applies to HD404889, HD404899, and HD404878 Series
Figure 45 Port Mode Register 2 (PMR2: $00A)
• Module standby register 1 (MSR1: $00D):
Module standby register 1 (MSR1) is a write-only register used to designate supply or stopping of the
clock to timer B as shown in figure 46.
Module standby register 1 (MSR1) is reset to $0 by an MCU reset.
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