R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 185
R5F21346CNFP#U0
Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet
1.R5F21346CNFPU0.pdf
(759 pages)
Specifications of R5F21346CNFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
43
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 152 of 723
Figure 11.2
11.1.5
Table 11.1
Note:
Undefined instruction
Overflow
BRK instruction
Address match
Single step
Watchdog timer,
Oscillation stop detection,
Voltage monitor 1,
Voltage monitor 2
Address break
(Reserved)
Reset
11.1.5.1
1. Do not use these interrupts. They are provided exclusively for use by development tools.
There are 4 bytes in each vector. Set the starting address of an interrupt routine in each interrupt vector. When
an interrupt request is acknowledged, the CPU branches to the address set in the corresponding interrupt vector.
Figure 11.2 shows an Interrupt Vector.
The fixed vector tables are allocated addresses 0FFDCh to 0FFFFh.
Table 11.1 lists the Fixed Vector Tables. The vector addresses (H) of fixed vectors are used by the ID code
check function. For details, refer to 31.3 Functions to Prevent Flash Memory from being Rewritten.
Interrupt Source
Interrupts and Interrupt Vectors
(1)
Vector address (H)
Fixed Vector Tables
Fixed Vector Tables
Interrupt Vector
Vector address (L)
(1)
0FFE4h to 0FFE7h If the content of address
0FFE8h to 0FFEBh
0FFDCh to 0FFDFh Interrupt with
0FFE0h to 0FFE3h Interrupt with
0FFECh to 0FFEFh
0FFF0h to 0FFF3h
0FFF4h to 0FFF7h
0FFF8h to 0FFFBh
0FFFCh to 0FFFFh
Vector Addresses
Address (L) to (H)
MSB
0 0 0 0
0 0 0 0
Middle-order address
Low-order address
UND instruction
INTO instruction
0FFE7h is FFh, program
execution starts from
the address shown by
the vector in the
relocatable vector table.
Remarks
High-order address
0 0 0 0
R8C/Tiny Series
Software Manual
11.6 Address Match
14. Watchdog Timer
9. Clock Generation Circuit
6. Voltage Detection Circuit
5. Resets
Interrupt
LSB
Reference
11. Interrupts
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