R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 177

• 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 147 of 589
11.4
11.4.1
Table 11.6
11.4.2
INT0
INT1
INT3
After Reset
Pin Name
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 018Eh
The INTi interrupt is generated by an INTi input. To use the INTi interrupt, set the INTiEN bit in the INTEN
register is to 1 (enabled). The edge polarity is selected using the INTiPL bit in the INTEN register and the POL
bit in the INTiIC register. The input pins used as the INT1 input can be selected.
Also, inputs can be passed through a digital filter with three different sampling clocks.
The INT0 pin is shared with the pulse output forced cutoff input of timer RC, and the external trigger input of
timer RB.
Table 11.6 lists the Pin Configuration of INT Interrupt.
The INTSR register selects which pin is assigned to the INT1 input. To use INT1, set this register.
Set the INTSR register before setting the INT1 associated registers. Also, do not change the setting values in
this register during INT1 operation.
Symbol
INT Interrupt
INT1SEL0 INT1 pin select bit
INT1SEL1
INT1SEL2
Bit
Symbol
INTi Interrupt (i = 0, 1, 3)
INT Interrupt Input Pin Select Register (INTSR)
—
—
—
—
—
Pin Configuration of INT Interrupt
P4_5
P1_5, P1_7, or P2_0
P3_3
b7
—
0
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
Reserved bit
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
Reserved bits
Assigned Pin
b6
—
0
Bit Name
b5
—
0
b4
—
0
Input
Input
Input
INT1SEL2 INT1SEL1 INT1SEL0
b3 b2 b1
Other than above: Do not set.
Set to 0.
Set to 0.
0 0 0: P1_7 assigned
0 0 1: P1_5 assigned
0 1 0: P2_0 assigned
I/O
b3
0
INT0 interrupt input, timer RB external
trigger input, timer RC pulse output forced
cutoff input
INT1 interrupt input
INT3 interrupt input
b2
0
Function
b1
0
Function
b0
—
0
11. Interrupts
R/W
R/W
R/W
R/W
R/W
R/W
—
—