HD6433935 Hitachi, HD6433935 Datasheet - Page 187
HD6433935
Manufacturer Part Number
HD6433935
Description
8-Bit MICROCONTROLLER
Manufacturer
Hitachi
Datasheet
1.HD6433935.pdf
(521 pages)
- Current page: 187 of 521
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8.12
8.12.1
Port B is an 8-bit input-only port, configured as shown in figure 8-11.
8.12.2
Table 8-32 shows the port B register configuration.
Table 8-32 Port B Register
Name
Port data register B
Port Data Register B (PDRB)
Reading PDRB always gives the pin states. However, if a port B pin is selected as an analog input
channel for the A/D converter by AMR bits CH3 to CH0, that pin reads 0 regardless of the input
voltage.
Bit
Read/Write
Port B
Overview
Register Configuration and Description
PB
R
7
7
Figure 8-11 Port B Pin Configuration
PB
R
6
6
Port B
Abbrev.
PDRB
PB
R
5
5
PB
R
4
4
R/W
R
PB
PB
PB
PB
PB
PB
PB
PB
PB
7
6
5
4
3
2
1
0
R
3
/AN
/AN
/AN
/AN
/AN
/AN
/AN
/AN
3
7
6
5
4
3
2
1
0
PB
R
2
2
Address
H'FFDE
PB
R
1
1
PB
R
0
0
175
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