M16C6KA_15 Datasheet, PDF (131/270 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Description

M16C/6KA Group
LPC Bus Interface
Data bus buffer control register 1
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
DBBCON1
Address
02C916
When reset
000000002
Bit symbol
Bit name
OBF0SEL OBF0 output selection bit
OBF00EN OBF00 output enable bit
OBF01EN OBF01 output enable bit
OBF1EN OBF1 output enable bit
OBF2EN OBF2 output enable bit
OBF3EN OBF3 output enable bit
Function
0 : OBF00 enable
1 : OBF01 enable
0 : P40 as GPIO
1 : P40 as OBF00 output
0 : P43 as GPIO
1 : P43 as OBF01 output
0 : P44 as GPIO
1 : P44 as OBF1 output
0 : P45 as GPIO
1 : P45 as OBF2 output
0 : P46 as GPIO
1 : P46 as OBF3 output
Nothing is assigned.
Cannot be written. The value is "0" in reading.
RW
Fig.GF-3 Data bus buffer control registers
Rev.1.00 Jul 16, 2004 page 129 of 266
REJ03B0100-0100Z