HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 263

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

9.3 Port 5
9.3.1 Overview
Port 5 is a 4-bit input/output port with the pin configuration shown in figure 9-4. The pin functions
differ depending on the operating mode.
In modes 1 and 2, port 5 is a generic input/output port. In modes 3 and 4, port 5 is used for address
output.
Port 5 has software-programmable built-in pull-up transistors.
Pins in port 5 can drive one TTL load and a 90-pF capacitive load. They can also drive an LED or
a darlington transistor pair.
9.3.2 Register Descriptions
Table 9-4 summarizes the registers of port 5.
Table 9-4 Port 5 Registers
Address*
H'FFC8
H'FFCA
H'FFDB
Note: * Lower 16 bits of the address.
Name
Port 5 data direction register
Port 5 data register
Port 5 input pull-up control register
Port 5
Figure 9-4 Port 5 Pin Configuration
Port 5 pins
P5 /A
P5 /A
P5 /A
P5 /A
7
6
5
4
23
22
21
20
Modes 1 and 2
P5 (input/output)
P5 (input/output)
P5 (input/output)
P5 (input/output)
245
7
6
5
4
Abbreviation
P5DDR
P5DR
P5PCR
R/W
W
R/W
R/W
Modes 3 and 4
A
A
A
A
23
22
21
20
Mode 1/2
H'0F
H'00
H'00
(output)
(output)
(output)
(output)
Initial Value
Mode 3/4
H'FF