366
Port A MOS Pull-Up Control Register (PAPCR)
Bit
:
7
6
5
4
3
2
1
0
—
—
—
—
PA3PCR PA2PCR PA1PCR PA0PCR
Initial value :
Undefined Undefined Undefined Undefined
0
0
0
0
R/W
:
—
—
—
—
R/W
R/W
R/W
R/W
PAPCR is an 8-bit readable/writable register that controls the MOS input pull-up function
incorporated into port A on an individual bit basis.
Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. In
modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the SCI’s
SCMR, SMR, and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS
input pull-up for that pin.
In mode 7, if a pin is in the input state in accordance with the settings in the SCI’s SCMR, SMR,
and SCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up
for that pin.
PAPCR is initialized by a manual reset or to H'0 (bits 3 to 0) by a power-on reset, and in hardware
standby mode. It retains its prior state in software standby mode.
Port A Open Drain Control Register (PAODR)
Bit
:
7
6
5
4
3
2
1
0
—
—
—
—
PA3ODR PA2ODR PA1ODR PA0ODR
Initial value :
Undefined Undefined Undefined Undefined
0
0
0
0
R/W
:
—
—
—
—
R/W
R/W
R/W
R/W
PAODR is an 8-bit readable/writable register that controls whether PMOS is on or off for each
port A pin (PA7 to PA0).
Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified.
When pins are not address outputs in accordance with the setting of bits AE3 to AE0 in PFCR,
setting a PAODR bit makes the corresponding port A pin an NMOS open-drain output, while
clearing the bit to 0 makes the pin a CMOS output.
PAODR is initialized to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It
retains its prior state by a manual reset or in software standby mode.
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...