R5F21191SP#U0 Renesas Electronics America, R5F21191SP#U0 Datasheet - Page 82

• Manufacturer Part Number: R5F21191SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/19r

Specifications of R5F21191SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, 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 4x1b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/18 Group, R8C/19 Group
Rev.1.30
REJ09B0222-0130
Table 10.3
Serial interface interrupt
Key input interrupt
Comparator conversion interrupt Usable in one-shot mode
Timer X interrupt
Timer Z interrupt
Timer C interrupt
INT interrupt
Voltage monitor 2 interrupt
Oscillation stop detection
interrupt
Watchdog timer interrupt
10.4.2.4
The MCU exits wait mode by a hardware reset or a peripheral function interrupt. To use a hardware
reset to exit wait mode, set bits ILVL2 to ILVL0 for the peripheral function interrupts to 000b
(interrupts disabled) before executing the WAIT instruction.
The peripheral function interrupts are affected by the CM02 bit. When the CM02 bit is set to 0
(peripheral function clock does not stop in wait mode), all peripheral function interrupts can be used
to exit wait mode. When the CM02 bit is set to 1 (peripheral function clock stops in wait mode), the
peripheral functions using the peripheral function clock stop operating and the peripheral functions
operated by external signals can be used to exit wait mode.
Table 10.3 lists Interrupts to Exit Wait Mode and Usage Conditions.
To use a peripheral function interrupt to exit wait mode, set up the following before executing the
WAIT instruction.
When exiting by a peripheral function interrupt, the interrupt sequence is executed when an interrupt
request is generated and the CPU clock supply is started.
The CPU clock, when exiting wait mode by a peripheral function interrupt, is the same clock as the
CPU clock when the WAIT instruction is executed.
(1) Set the interrupt priority level in bits ILVL2 to ILVL0 in the interrupt control registers of the
(2) Set the I flag to 1.
(3) Operate the peripheral function to be used for exiting wait mode.
Apr 14, 2006
peripheral function interrupts to be used for exiting wait mode. Set bits ILVL2 to ILVL0 of the
peripheral function interrupts that are not to be used for exiting wait mode to 000b (interrupt
disabled).
Interrupt
Exiting Wait Mode
Interrupts to Exit Wait Mode and Usage Conditions
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Usable when operating with
internal or external clock
Usable
Usable in all modes
Usable in all modes
Usable in all modes
Usable
Usable
Usable
Usable in count source protect
mode
CM02 = 0
(Do not use)
(Do not use)
(Do not use)
(Do not use)
Usable when operating with
external clock
Usable
Usable in event counter mode
Usable (INT0 and INT3 can be
used if there is no filter.)
Usable
Usable in count source protect
mode
CM02 = 1
10. Clock Generation Circuit