R5F21292SNSP#U0 Renesas Electronics America, R5F21292SNSP#U0 Datasheet - Page 135

• Manufacturer Part Number: R5F21292SNSP#U0
• Description: MCU 3/5V 16K+2K 20PIN-SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/29r

Specifications of R5F21292SNSP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.2 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: R0K521276S000BE - KIT DEV RSK-R8C/26-29
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/28 Group, R8C/29 Group
Rev.2.10
REJ09B0279-0210
Figure 12.11
12.1.6.10 Interrupt Priority Judgement Circuit
The interrupt priority judgement circuit selects the highest priority interrupt, as shown in Figure 12.11.
Sep 26, 2008
Interrupt Priority Level Judgement Circuit
Priority level of interrupt
NOTE:
1. The IICSEL bit in the PMR register switches functions.
2. For N, D version only.
Oscillation stop detection
Voltage monitor 1
Voltage monitor 2
UART1 transmit
UART0 transmit
SSU / I
Watchdog timer
UART1 receive
UART0 receive
A/D conversion
Address match
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Timer RB
Timer RA
Timer RC
Timer RE
Key input
INT3
INT0
INT1
I flag
IPL
2
C bus
(1)
(2)
Level 0 (default value)
Highest
Lowest
Priority of peripheral function interrupts
(if priority levels are same)
Interrupt request level
judgment output signal
Interrupt request
acknowledged
12. Interrupts