h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 287

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Port B Output Data Register (PBODR)
PBODR is an 8-bit readable/writable register that stores output data for the port B pins (PB7 to
PB0). PBODR can always be read or written to, regardless of the contents of PBDDR.
PBODR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in
software standby mode.
Port B Input Data Register (PBPIN)
Note:
Reading PBPIN always returns the pin states.
PBPIN has the same address as P8DDR. If a write is performed, data will be written to P8DDR
and the port 8 settings will change.
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Modes 2 and 3 (EXPE = 0)
A port B pin becomes an output port if the corresponding PBDDR bit is set to 1, and an input
port if the bit is cleared to 0.
* Determined by the state of pins PB7 to PB0.
PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR
PB7PIN
R/W
—*
R
7
0
7
PB6PIN PB5PIN
R/W
—*
R
6
0
6
R/W
—*
R
5
0
5
PB4PIN
R/W
—*
R
4
0
4
Rev. 3.00 Jan 18, 2006 page 259 of 1044
PB3PIN
R/W
—*
R
3
0
3
PB2PIN
R/W
—*
R
2
0
2
Section 8 I/O Ports
PB1PIN
REJ09B0280-0300
R/W
—*
R
1
0
1
PB0PIN
R/W
—*
R
0
0
0