Datasheet

Section 10A I/O Ports
(H8S/2633, H8S/2632, H8S/2631, H8S/2633R)
Page 416 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
10A.8 Port B
10A.8.1 Overview
Port B is an 8-bit I/O port. Port B pins also function as TPU I/O pins (TIOCA3, TIOCB3,
TIOCC3, TIOCD3, TIOCA4, TIOCB4, TIOCA5, and TIOCB5) and as address outputs; the pin
functions change according to the operating mode.
Port B has a built-in MOS input pull-up function that can be controlled by software.
Figure 10A.7 shows the port B pin configuration.
PB7/A15/TIOCB5
PB6/A14/TIOCA5
PB5/A13/TIOCB4
PB4/A12/TIOCA4
PB3/A11/TIOCD3
PB2/A10/TIOCC3
PB1/A9 /TIOCB3
PB0/A8 /TIOCA3
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(I/O) /
A15
A14
A13
A12
A11
A10
A9
A8
(output) / TIOCB5 (I/O)
(output) / TIOCA5 (I/O)
(output) / TIOCB4 (I/O)
(output) / TIOCA4 (I/O)
(output) / TIOCD3 (I/O)
(output) / TIOCC3 (I/O)
(output) / TIOCB3 (I/O)
(output) / TIOCA3 (I/O)
Port B pins
Pin functions in mode 7
Pin functions in modes 4 to 6
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
(I/O) / TIOCB5 (I/O)
(I/O) / TIOCA5 (I/O)
(I/O) / TIOCB4 (I/O)
(I/O) / TIOCA4 (I/O)
(I/O) / TIOCD3 (I/O)
(I/O) / TIOCC3 (I/O)
(I/O) / TIOCB3 (I/O)
(I/O) / TIOCA3 (I/O)
Port B
Figure 10A.7 Port B Pin Functions