HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 159

• Manufacturer Part Number: HD64F36077GHV
• Description: 16BIT MCU FLASH 56K, SMD, LQFP64
• Manufacturer: Renesas Electronics America

Specifications of HD64F36077GHV

• No. Of I/o's: 47
• Ram Memory Size: 4KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 4.5V
• Core Size: 16bit
• Program Memory Size: 56KB
• Oscillator Type: External Only
• Controller Family/series: H8/300H
• Peripherals: ADC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.2
Port 2 is a general I/O port also functioning as SCI3 I/O pins. Each pin of the port 2 is shown in
figure 9.2. The register settings of PMR1and SCI3 have priority for functions of the pins for both
uses.
Port 2 has the following registers.
• Port control register 2 (PCR2)
• Port data register 2 (PDR2)
• Port mode register 3 (PMR3)
9.2.1
PCR2 selects inputs/outputs in bit units for pins to be used as general I/O ports of port 2.
Bit
7 to 5
4
3
2
1
0
Bit Name

PCR24
PCR23
PCR22
PCR21
PCR20
Port 2
Port Control Register 2 (PCR2)
Initial
Value

0
0
0
0
0
Figure 9.2 Port 2 Pin Configuration
R/W

W
W
W
W
W
Port 2
Description
Reserved
When each of the port 2 pins P24 to P20 functions as a
general I/O port, setting a PCR2 bit to 1 makes the
corresponding pin an output port, while clearing the bit to
0 makes the pin an input port.
P24
P23
P22/TXD
P21/RXD
P20/SCK3
Rev. 1.00 Sep. 16, 2005 Page 129 of 490
Section 9 I/O Ports
REJ09B0216-0100