R5F21122FP#U0 Renesas Electronics America, R5F21122FP#U0 Datasheet - Page 57

• Manufacturer Part Number: R5F21122FP#U0
• Description: IC R8C MCU FLASH 8K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/12r

Specifications of R5F21122FP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/12 Group
Rev.1.20
REJ09B0110-0120
Figure 10.9 Interrupts Priority Select Circuit
• Interrupt Priority Resolution Circuit
Jan 27, 2006
The interrupt priority resolution circuit is used to select the interrupt with the highest priority among
those requested.
Figure 10.9 shows the Interrupts Priority Select Circuit
Priority level of each interrupt
Oscillation stop detection
UART1 transmission
UART0 transmission
Key input interrupt
UART1 reception
U A R T 0 r e c e p t i o n
A d d r e s s m a t c h
Watchdog timer
A/D conversion
Timer Y
Timer C
Timer Z
Timer X
I f l a g
I N T 3
I N T 1
INT2
I N T 0
I P L
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Lowest
Highest
P r i o r i t y o f p e r i p h e r a l f u n c t i o n i n t e r r u p t s
( i f p r i o r i t y l e v e l s a r e s a m e )
Interrupt request level
resolution output signal
accepted
Interrupt
request
10.1 Interrupt Overview