H8S33 Datasheet, PDF (544/1489 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 10B I/O Ports (H8S/2695)
Table 10B.8 Port 7 Pin Functions
Pin
P77/TxD3
Selection Method and Pin Functions
Switches as follows according to combinations of SCR TE bit of SCI3, and the
P77DDR bit.
TE
0
1
P77DDR
0
1
—
Pin function P77 input pin P77 output pin
TxD3 output pin
P76/RxD3
Switches as follows according to combinations of SCR RE bit of SCI3 and the
P76DDR bit.
RE
0
1
P76DDR
0
1
—
Pin function P76 input pin P76 output pin
RxD3 I/O pin
P75/SCK3
Switches as follows according to combinations of SMR C/A bit of SCI3, SCR CKE0
and CKE1 bits, and the P75DDR bit.
CKE1
0
1
C/A
0
1
—
CKE0
0
1
—
—
P75DDR
0
1
—
—
—
Pin function
P75
input pin
P75
SCK3
SCK3
output pin output pin output pin
SCK3
input pin
P74/MRES
Switches as follows according to combinations of SYSCR MRESE bit and the
P74DDR bit.
MRESE
0
1
P74DDR
0
1
—
Pin function
P74 input pin
P74 output pin
MRES input pin
Rev. 5.00 Mar 28, 2005 page 480 of 1422
REJ09B0234-0500