HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 425
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HD6412332
Manufacturer Part Number
HD6412332
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412332.pdf
(1244 pages)
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PADR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in
software standby mode.
Port A Register (PORTA)
Note: * Determined by state of pins PA
PORTA is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of
output data for the port A pins (PA
If a port A read is performed while PADDR bits are set to 1, the PADR values are read. If a port A
read is performed while PADDR bits are cleared to 0, the pin states are read.
After a reset and in hardware standby mode, PORTA contents are determined by the pin states, as
PADDR and PADR are initialized. PORTA retains its prior state in software standby mode.
Port A MOS Pull-Up Control Register (PAPCR)
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.
All the bits are valid in modes 6 and 7, and bits 7 to 5 are valid in modes 4 and 5. When a PADDR
bit is cleared to 0 (input port setting), setting the corresponding PAPCR bit to 1 turns on the MOS
input pull-up for the corresponding pin.
PAPCR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in
software standby mode.
Bit
Initial value :
R/W
Bit
Initial value :
R/W
:
:
:
:
PA7PCR PA6PCR PA5PCR PA4PCR PA3PCR PA2PCR PA1PCR PA0PCR
R/W
PA7
— *
R
7
7
0
PA6
R/W
— *
R
6
6
0
7
to PA
7
to PA
PA5
R/W
— *
R
5
5
0
0
) must always be performed on PADR.
0
.
R/W
PA4
— *
R
0
4
4
Rev.4.00 Sep. 07, 2007 Page 395 of 1210
R/W
PA3
— *
R
3
3
0
PA2
R/W
— *
R
2
2
0
REJ09B0245-0400
PA1
R/W
— *
R
1
1
0
R/W
PA0
— *
R
0
0
0
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