HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 200

• 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
7.6
7.6.1
Port 9 is a 6-bit input/output port that is also used for input and output (TxD
SCK
and IRQ
The IRQ
input or output. Caution is therefore required. For details see section 5.3.1, External Interrupts.
Port 9 has the same set of pin functions in all operating modes. Figure 7.5 shows the pin
configuration of port 9.
Pins in port 9 can drive one TTL load and a 30-pF capacitive load. They can also drive a
darlington transistor pair.
Rev.4.00 Aug. 20, 2007 Page 156 of 638
REJ09B0395-0400
0
, SCK
4
5
input. See table 7.10 for the selection of pin functions.
Port 9
Overview
and IRQ
1
) by serial communication interface channels 0 and 1 (SCI0 and SCI1), and for IRQ
Port 9
4
functions are selected by IER settings, regardless of whether the pin is used for
Figure 7.5 Port 9 Pin Configuration
Port 9 pins
P9 (input/output)/SCK
P9 (input/output)/SCK
P9 (input/output)/RxD (input)
P9 (input/output)/RxD (input)
P9 (input/output)/TxD (output)
P9 (input/output)/TxD (output)
5
4
3
2
1
0
1
0
1
0
1
0
(input/output)/IRQ (input)
(input/output)/IRQ (input)
0
, TxD
5
4
1
, RxD
0
, RxD
1
5
,