HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 148

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.4
7.4.1
Port 3 is an 8-bit input/output port that is multiplexed with the data bus and host interface data bus.
Figure 7.9 shows the pin configuration of port 3. The pin functions differ depending on the
operating mode.
Port 3 has built-in, programmable MOS input pull-up transistors that can be used in mode 3.
Pins in port 3 can drive one TTL load and a 90-pF capacitive load. They can also drive a
darlington transistor.
116
Port 3
Port 3
Overview
Port 3 pins
P3
P3
P3
P3
P3
P3
P3
P3
7
6
5
4
3
2
1
0
Figure 7.9 Port 3 Pin Configuration
/D
/D
/D
/D
/D
/D
/D
/D
7
6
5
4
3
2
1
0
/HDB
/HDB
/HDB
/HDB
/HDB
/HDB
/HDB
/HDB
7
6
5
4
3
2
1
0
Pin configuration in mode 1
(expanded mode with on-chip
ROM disabled) and mode 2
(expanded mode with on-chip
ROM enabled)
D
D
D
D
D
D
D
D
Pin configuration in mode 3 (single-chip mode)
Master mode
P3
P3
P3
P3
P3
P3
P3
P3
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)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
Slave mode
HDB
HDB
HDB
HDB
HDB
HDB
HDB
HDB
7
6
5
4
3
2
1
0
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)