HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 181

• 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

9.7
Port 8 is a general I/O port. Each pin of the port 8 is shown in figure 9.7.
Port 8 has the following registers.
• Port control register 8 (PCR8)
• Port data register 8 (PDR8)
9.7.1
PCR8 selects inputs/outputs in bit units for pins to be used as general I/O ports of port 8.
9.7.2
PDR8 is a general I/O port data register of port 8.
Bit
7
6
5
4 to 0
Bit
7
6
5
4 to 0
Bit Name
PCR87
PCR86
PCR85

Bit Name
P87
P86
P85

Port 8
Port Control Register 8 (PCR8)
Port Data Register 8 (PDR8)
Initial
Value
0
0
0

Initial
Value
0
0
0
All 1
Figure 9.7 Port 8 Pin Configuration
R/W
W
W
W

R/W
R/W
R/W
R/W

Port 8
Description
When each of the port 8 pins P87 to P85 functions as a
general I/O port, setting a PCR8 bit to 1 makes the
corresponding pin an output port, while clearing the bit to
0 makes the pin an input port.
Reserved
Description
PDR8 stores output data for port 8 pins.
If PDR8 is read while PCR8 bits are set to 1, the value
stored in PDR8 is read. If PDR8 is read while PCR8 bits
are cleared to 0, the pin states are read regardless of the
value stored in PDR8.
Reserved
These bits are always read as 1.
P87
P86
P85
Rev. 1.00 Sep. 16, 2005 Page 151 of 490
Section 9 I/O Ports
REJ09B0216-0100