R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 98

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K 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: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 68 of 589
7.4
7.4.1
Notes:
After Reset
1. Write to the PD0 register with the next instruction after that used to set the PRC2 bit in the PRCR register to 1
2. Bits PD2_3 to PD2_7 in the PD2 register are reserved bits. If it is necessary to set bits PD2_3 and PD2_7, set to
3. Bits PD3_0, PD3_2, and PD3_6 in the PD3 register are reserved bits. If it is necessary to set bits PD3_0, PD3_2
4. Bits PD4_0 to PD4_2 in the PD4 register are unavailable on this MCU. If it is necessary to set bits PD4_0 to
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 00E2h (PD0
Symbol
(write enabled).
0. When read, the content is 0.
and PD3_6, set to 0. When read, the content is 0.
PD4_2 set to 0. When read, the content is 0. Bits PD4_3, PD4_4 are reserved bits. If it is necessary to set bits
PD4_3 and PD4_4, set to 0. When read, the content is 0.
The PDi register selects whether I/O ports are used for input or output. Each bit in the PDi register corresponds
to one port.
Registers
Bit
Symbol
PDi_0
PDi_1
PDi_2
PDi_3
PDi_4
PDi_5
PDi_6
PDi_7
Port Pi Direction Register (PDi) (i = 0 to 4)
PDi_7
b7
0
Port Pi_0 direction bit
Port Pi_1 direction bit
Port Pi_2 direction bit
Port Pi_3 direction bit
Port Pi_4 direction bit
Port Pi_5 direction bit
Port Pi_6 direction bit
Port Pi_7 direction bit
PDi_6
(1)
b6
), 00E3h (PD1), 00E6h (PD2
0
Bit Name
PDi_5
b5
0
PDi_4
b4
0
(2)
PDi_3
0: Input mode (functions as an input port)
1: Output mode (functions as an output port)
), 00E7h (PD3
b3
0
PDi_2
b2
0
(3)
), 00EAh (PD4
PDi_1
Function
b1
0
PDi_0
b0
(4)
0
)
7. I/O Ports
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W