R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 102

• Manufacturer Part Number: R5F211B1SP#U0
• Description: IC R8C MCU FLASH 4K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/1Br

Specifications of R5F211B1SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
Figure 12.4
INT0 Interrupt Control Register
b7 b6 b5 b4 b3 b2 b1
NOTES :
1.
2.
3.
4.
0
Only 0 can be w ritten to the IR bit. (Do not w rite 1.)
Rew rite the interrupt control register w hen the interrupt request w hich is applicable for the register is not generated.
Refer to 12.5.6 Changing Interrupt Control Registers.
If the INTOPL bit in the INTEN register is set to 1 (both edges), set the POL bit to 0 (selects falling edge).
The IR bit may be set to 1 (requests interrupt) w hen the POL bit is rew ritten. Refer to 12.5.5 Changing Interrupt
Sources.
Dec 08, 2006
INT0IC Register
b0
Bit Symbol
(b7-b6)
Symbol
INT0IC
ILVL0
ILVL1
ILVL2
POL
(b5)
Page 84 of 315
—
—
IR
(2)
Interrupt priority level select bits
Interrupt request bit
Polarity sw itch bit
Reserved bit
Nothing is assigned. If necessary, set to 0.
When read, the content is undefined.
Address
Bit Name
005Dh
(4)
b2 b1 b0
0 0 0 : Level 0 (interrupt disable)
0 0 1 : Level 1
0 1 0 : Level 2
0 1 1 : Level 3
1 0 0 : Level 4
1 0 1 : Level 5
1 1 0 : Level 6
1 1 1 : Level 7
0 : Requests no interrupt.
1 : Requests interrupt.
0 : Selects falling edge.
1 : Selects rising edge.
Set to 0.
After Reset
XX00X000b
Function
(3)
12. Interrupts
RW
RW
RW
RW
RW
RW
RW
—
(1)