Pin Functions - Renesas H8S/2368 Series Hardware Manual

9.3.6

Pin Functions

Port 3 pins also function as the pins for SCI I/Os, I
correspondence between the register specification and the pin functions is shown below.
•
P35/SCK1/SCL0/(OE)*
The pin function is switched as shown below according to the combination of the ICE bit in
2
ICCRA of I C_0, C/A bit in SMR of SCI_1, bits CKE0 and CKE1 in SCR, bits OEE in
DRAMCR, bit OES in PFCR2, and bit P35DDR.
Modes 1, 2, 4, 7 (EXPE = 1)
3
OEE*
3
OES*
ICE
CKE1
C/A 0
CKE0 0
P35DDR 0 1
Pin P35 P35
1
function input output*
Mode 7 (EXPE = 0)
OEE
3
*
OES
3
*
ICE
CKE1
C/A
CKE0
P35DDR
Pin function
Notes: *1 NMOS open-drain output when P35ODR = 1.
*2 NMOS open-drain output regardless of P35ODR
*3 Not supported by the H8S/2366.
3
0
—
—
0 1
1 —
1 — —
— — —
SCK1 SCK1 SCK1
1 1
output* output* input
0
0
0 1
P35 P35
1
input output*
2
C output, and a bus control signal output. The
1
— 0
— 0
— 0 1
— 0 1 —
SCL0 P35 P35 SCK1
2 1
I/O* input output* output*
—
—
0
0
1
1 —
— —
SCK1 SCK1
1
output* output*
Rev. 2.00, 05/03, page 327 of 820
1
1
0 1
1 —
1 — —
— — —
— — —
SCK1 SCK1 SCL0
1 1
output* input I/O*
1
—
—
—
SCK1
1
input
0
—
—
—
—
—
OE output*
3
2
1
—
—
—
—
SCL0
2
I/O*