R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 120

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 87 of 723
7.4.21
Note:
After Reset
1. Both “H” and “L” output are set to high drive capacity.
DRR00 Bit (P0_0 to P0_3 drive capacity)
DRR01 Bit (P0_4 to P0_7 drive capacity)
DRR06 Bit (P3_0, P3_1, and P3_3 drive capacity)
DRR07 Bit (P3_4, P3_5, and P3_7 drive capacity)
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 01F2h
For pins used as output, the setting values in the DRR0 register are valid.
The DRR00 bit selects whether the drive capacity of the P0_0 to P0_3 output transistors is set to low or high.
This bit is used to select whether the drive capacity of the output transistors is set to low or high for four pins.
The DRR01 bit selects whether the drive capacity of the P0_4 to P0_7 output transistors is set to low or high.
This bit is used to select whether the drive capacity of the output transistors is set to low or high for four pins.
The DRR06 bit selects whether the drive capacity of the P3_0, P3_1, and P3_3 output transistors is set to low or
high. This bit is used to select whether the drive capacity of the output transistors is set to low or high for three
pins.
The DRR07 bit selects whether the drive capacity of the P3_4, P3_5, and P3_7 output transistors is set to low or
high. This bit is used to select whether the drive capacity of the output transistors is set to low or high for three
pins.
Symbol
Symbol
DRR00 P0_0 to P0_3 drive capacity
DRR01 P0_4 to P0_7 drive capacity
DRR06 P3_0, P3_1, and P3_3 drive capacity 0: Low
DRR07 P3_4, P3_5, and P3_7 drive capacity
Bit
Drive Capacity Control Register 0 (DRR0)
—
—
—
—
DRR07
b7
0
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
DRR06
b6
0
Bit Name
b5
—
0
b4
—
0
0: Low
1: High
1: High
b3
—
0
(1)
(1)
b2
—
0
DRR01
Function
b1
0
DRR00
b0
0
7. I/O Ports
R/W
R/W
R/W
R/W
R/W
—