Port B Mos Pull-Up Control Register (Pbpcr); Pin Functions - Renesas H8S/2368 Series Hardware Manual

9.9.4

Port B MOS Pull-Up Control Register (PBPCR)

PBPCR controls the on/off state of MOS input pull-up of port B. PBPCR is valid in modes 4 and
7.
Bit Bit Name Initial Value
7 PB7PCR 0
6 PB6PCR 0
5 PB5PCR 0
4 PB4PCR 0
3 PB3PCR 0
2 PB2PCR 0
1 PB1PCR 0
0 PB0PCR 0
9.9.5

Pin Functions

Port B pins also function as the pins for address outputs. The correspondence between the register
specification and the pin functions is shown below.
•
PB7/A15, PB6/A14, PB5/A13, PB4/A12, PB3/A11, PB2/A10, PB1/A9, PB0/A8
The pin function is switched as shown below according to the operating mode, bit EXPE, and bit
PBDDR.
Operating 1, 2
mode
EXPE —
PBDDR —
Pin function Address
output
Rev. 2.00, 05/03, page 350 of 820
R/W Description
R/W When PBDDR = 0 (input port), setting the
corresponding bit to 1 turns on the MOS input pull-up
R/W
for that pin.
R/W
R/W
R/W
R/W
R/W
R/W
4
—
0 1
PB input Address
output
0
0 1
PB input PB output
7
1
0 1
PB input Address
output