R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 111

• 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 12.14
12.2.3
Timer X Mode Register
b7 b6 b5 b4
NOTES :
1.
2.
3.
The INT1 interrupt is generated by an INT1 input. The edge polarity is selected by the R0EDG bit in the TXMR
register.
When the CNTRSEL bit in the UCON register is set to 0, the INT10 pin becomes the INT1 input pin. When the
CNTRSEL bit is set to 1, the INT11 pin becomes the INT1 input pin.
The INT10 pin is shared with the CNTR00 pin and the INT11 pin is shared with the CNTR01 pin.
Figure 12.14 shows the TXMR Register when INT1 Interrupt is Used.
When using INT1
The IR bit in the INT1IC register may be set to 1 (requests interrupt) w hen the R0EDG bit is rew ritten. Refer to 12.5.5
Changing Interrupt Sources.
Refer to 14.1.6 Notes on Tim er X for precautions regarding the TXS bit.
Dec 08, 2006
INT1 Interrupt
b3 b2 b1 b0
TXMR Register when INT1 Interrupt is Used
_____
Bit Symbol
TXMOD0
TXMOD1
TXMOD2
TXOCNT
interrupt, select modes other than pulse output mode.
Symbol
R0EDG
TXEDG
TXUND
TXMR
TXS
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Operating mode select bits
0, 1
_____
INT1
bit
Timer X count start flag
P3_7/CNTR0
Operating mode select
bit 2
Active edge reception flag
Timer X underflow flag
(2)
(1)
/CNTR0 polarity sw itch
________
Address
Bit Name
008Bh
select bit
(3)
b1 b0
0 0 : Timer mode or pulse period measurement
0 1 : Do not set.
1 0 : Event count mode
1 1 : Pulse w idth measurement mode
0 : Rising edge
1 : Falling edge
0 : Stops counting.
1 : Starts counting.
Function varies depending on operating mode.
0 : Other than pulse period measurement mode
1 : Pulse period measurement mode
Function varies depending on operating mode.
Function varies depending on operating mode.
mode
After Reset
Function
00h
12. Interrupts
RW
RW
RW
RW
RW
RW
RW
RW
RW