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155
Table 7.10
Port 9 Pin Functions
Pin
Pin Functions and Selection Method
P9
5
/SCK
1
/
IRQ
5
Bit C/
A
in SMR of SCI1, bits CKE0 and CKE1 in SCR, and bit P9
5
DDR
select the pin function as follows.
CKE1
0
1
C/
A
0
1
—
CKE0
0
1
—
—
P9
5
DDR
0
1
—
—
—
Pin function
P9
5
input
P9
5
output
SCK
1
output
SCK
1
output
SCK
1
input
IRQ
5
input
P9
4
/SCK
0
/
IRQ
4
Bit C/
A
in SMR of SCI0, bits CKE0 and CKE1 in SCR, and bit P9
4
DDR
select the pin function as follows.
CKE1
0
1
C/
A
0
1
—
CKE0
0
1
—
—
P9
4
DDR
0
1
—
—
—
Pin function
P9
4
input
P9
4
output
SCK
0
output
SCK
0
output
SCK
0
input
IRQ
4
input
P9
3
/RxD
1
Bit RE in SCR of SCI1, bit SMIF in SCMR, and bit P9
3
DDR select the pin
function as follows.
SMIF
0
1
RE
0
1
—
P9
3
DDR
0
1
—
—
Pin function
P9
3
input
P9
3
output
RxD
1
input
RxD
1
input
P9
2
/RxD
0
Bit RE in SCR of SCI0, bit SMIF in SCMR, and bit P9
2
DDR select the pin
function as follows.
SMIF
0
1
RE
0
1
—
P9
2
DDR
0
1
—
—
Pin function
P9
2
input
P9
2
output
RxD
0
input
RxD
0
input
Summary of Contents for H8/3008
Page 1: ...Hitachi 16 Bit Microcomputer H8 3008 Hardware Manual ADE 602 221 Rev 1 0 9 14 00 Hitachi Ltd ...
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