HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 204

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

7. I/O Ports
Pin
P9
P9
Rev.4.00 Aug. 20, 2007 Page 160 of 638
REJ09B0395-0400
1
0
/TxD
/TxD
1
0
Pin Functions and Selection Method
Bit TE in SCR of SCI1, bit SMIF in SCMR, and bit P9
function as follows.
SMIF
TE
P9
Pin function
Note:
Bit TE in SCR of SCI0, bit SMIF in SCMR, and bit P9
function as follows.
SMIF
TE
P9
Pin function
Note:
1
0
DDR
DDR
* Functions as the TxD
* Functions as the TxD
one in which the pin is driven, and another in which the pin is
at high-impedance.
one in which the pin is driven, and another in which the pin is
at high-impedance.
P9
P9
1
0
0
0
input
input
0
0
1
0
P9
P9
output pin, but there are two states:
output pin, but there are two states:
1
0
output
output
0
1
0
1
TxD
TxD
1
0
⎯
⎯
1
1
output TxD
output TxD
1
0
DDR select the pin
DDR select the pin
1
0
⎯
⎯
⎯
⎯
output*
output*
1
1