HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 204

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 7 I/O Ports
7.5
7.5.1
Port 4 is an 8-bit input/output port which also functions as a data bus. It’s pin configuration is
shown in figure 7.4. The pin functions differ depending on the operating mode.
In modes 1 to 5 (expanded modes), when the bus width control register (ABWCR) designates
areas 0 to 7 all as 8-bit-access areas, the chip operates in 8-bit bus mode and port 4 is a generic
input/output port. When at least one of areas 0 to 7 is designated as a 16-bit-access area, the chip
operates in 16-bit bus mode and port 4 becomes part of the data bus. In modes 6 and 7 (single-chip
mode), port 4 is a generic input/output port.
Port 4 has software-programmable built-in pull-up transistors.
Pins in port 4 can drive one TTL load and a 90-pF capacitive load. They can also drive a
darlington transistor pair.
Rev. 2.00 Sep 20, 2005 page 164 of 800
REJ09B0260-0200
Port 4
Port 4
Overview
Port 4 pins
P4 /D
P4 /D
P4 /D
P4 /D
P4 /D
P4 /D
P4 /D
P4 /D
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Figure 7.4 Port 4 Pin Configuration
Modes 1 to 5
P4 (input/output)/D
P4 (input/output)/D
P4 (input/output)/D
P4 (input/output)/D
P4 (input/output)/D
P4 (input/output)/D
P4 (input/output)/D
P4 (input/output)/D
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
Modes 6 and 7
P4 (input/output)
P4 (input/output)
P4 (input/output)
P4 (input/output)
P4 (input/output)
P4 (input/output)
P4 (input/output)
P4 (input/output)
7
6
5
4
3
2
1
0