HD64F3048F16 Datasheet, PDF (340/903 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
Port B Data Register (PBDR)
PBDR is an 8-bit readable/writable register that stores output data for pins PB7 to PB0. While port
B acts as an output port, the value of this register is output. When a bit in PBDDR is set to 1, if
port B is read the value of the corresponding PBDR bit is returned. When a bit in PBDDR is
cleared to 0, if port B is read the corresponding pin level is read.
Bit
7
6
5
4
3
2
1
0
PB ₇
PB ₆
PB ₅
PB ₄
PB ₃
PB ₂
PB ₁
PB ₀
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W R/W
R/W
R/W
R/W
R/W
R/W
Port B data 7 to 0
These bits store data for port B pins
PBDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Rev. 3.00 Sep 27, 2006 page 312 of 872
REJ09B0325-0300