Rev. 3.0, 10/02, page 239 of 686
9.7.3
Port B Register (PORTB)
PORTB shows port B pin states.
Bit
Bit Name Initial Value
R/W
Description
7
PB7
–
*
R
6
PB6
–
*
R
5
PB5
–
*
R
4
PB4
–
*
R
3
PB3
–
*
R
2
PB2
–
*
R
1
PB1
–
*
R
0
PB0
–
*
R
If the port B read is performed while PBDDR bits are set
to 1, the PBDR values are read. If a port B read is
performed while PBDDR bits are cleared to 0, the pin
states are read.
Note:
*
Determined by the status of pins PB7 to PB0.
9.7.4
Port B MOS Pull-Up Control Register (PBPCR)
PBPCR controls the on/off state of input pull-up MOS of port B.
Bit
Bit Name Initial Value
R/W
Description
7
PB7PCR
0
R/W
6
PB6PCR
0
R/W
5
PB5PCR
0
R/W
4
PB4PCR
0
R/W
3
PB3PCR
0
R/W
2
PB2PCR
0
R/W
1
PB1PCR
0
R/W
0
PB0PCR
0
R/W
When a pin functions specified to an input port, setting the
corresponding bit to 1 turns on the input pull-up MOS for
that pin.
Содержание H8S/2215 Series
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Страница 481: ...Rev 3 0 10 02 page 423 of 686 I O pin Control OUT IN TDI pin TDO pin Figure 14 2 Boundary Scan Register Configuration ...
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Страница 721: ...Rev 3 0 10 02 page 663 of 686 ø A23 to A0 to tBRQS tBACD tBZD tBACD tBZD tBRQS Figure 24 11 External Bus Release Timing ...
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