HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 275

• Manufacturer Part Number: HD6413003RVF
• Description: microcontroller (MCU)
• Manufacturer: RENESAS [Renesas Technology Corp]

9.7 Port 9
9.7.1 Overview
Port 9 is a 6-bit input/output port that is also used for input and output (TxD
SCK
and IRQ
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.
9.7.2 Register Descriptions
Table 9-11 summarizes the registers of port 9.
Table 9-11 Port 9 Registers
Address*
H'FFD0
H'FFD2
Note: * Lower 16 bits of the address.
0
, SCK
4
input. Port 9 has the same set of pin functions in all operating modes. Figure 9-10 shows
1
) by serial communication interface channels 0 and 1 (SCI
Port 9
Name
Port 9 data direction register
Port 9 data register
Figure 9-10 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
257
1
0
1
0
1
0
Abbreviation
P9DDR
P9DR
(input/output)/IRQ (input)
(input/output)/IRQ (input)
0
and SCI
5
4
R/W
W
R/W
0
, TxD
1
), and for IRQ
Initial Value
H'C0
H'C0
1
, RxD
0
, RxD
5
1
,