Port Function Control Register 0 (Pfcr0); Pin Functions - Hitachi H8S/2378, H8S/2378R Series Hardware Manual

10.15.4 Port Function Control Register 0 (PFCR0)

PFCR0 performs I/O port control.
Bit Bit Name
7 CS7E
6 CS6E
5 CS5E
4 CS4E
3 CS3E
2 CS2E
1 CS1E
0 CS0E

10.15.5 Pin Functions

Port G pins also function as the pins for bus control signal I/Os. The correspondence between the
register specification and the pin functions is shown below.
%5(4 %5(4 %5(4
PG6/%5(4
The pin function is switched as shown below according to the operating mode, bit EXPE, bit
BRLE, and bit PG6DDR.
Operating 1, 2, 4, 5, 6
mode
EXPE
BRLE
PG6DDR 0
Pin PG6
function input
Initial Value R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
—
0 1
1 —
%5(4
PG6 PG6
output input input
Description
CS7 to CS0 Enable
These bits enable or disable the corresponding &6Q
output.
0: Pin is designated as I/O port
1: Pin is designated as &6Q output pin
7
0
—
0 1 0
PG6 PG6
output input
1
0 1
1 —
%5(4
PG6
output input
Rev. 1.0, 09/01, page 485 of 904
(n = 7 to 0)