R5F21236JFP Renesas Electronics America, R5F21236JFP Datasheet - Page 447
R5F21236JFP
Manufacturer Part Number
R5F21236JFP
Description
MCU 3/5V 32K+2K 48-LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21236JFP
Core Processor
R8C
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 20.5
Flash Memory Control Register 0
b7 b6 b5 b4
NOTES:
1.
2.
3.
4.
5.
6.
0 0
When setting this bit to 1, set to 1 immediately after setting it first to 0. Do not generate an interrupt betw een setting
the bit to 0 and setting it to 1. Enter read array mode and set this bit to 0.
Set this bit to 1 immediately after setting this bit first to 0 w hile the FMR01 bit is set to 1.
Do not generate an interrupt betw een setting the bit to 0 and setting it to 1.
Set this bit by a program transferred to the RAM.
This bit is set to 0 by executing the clear status command.
This bit is enabled w hen the FMR01 bit is set to 1 (CPU rew rite mode enabled). When the FMR01 bit is set to 0 and
w riting 1 to the FMSTP bit, the FMSTP bit is set to 1. The flash memory does not enter low -pow er consumption stat
When setting the FMR01 bit to 0 (CPU rew rite mode disabled), the FMR02 bit is set to 0 (disables rew rite).
b3 b2 b1 b0
FMR0 Register
Bit Symbol
(b5-b4)
Symbol
FMR00
FMR02
FMSTP
FMR06
FMR07
FMR01
FMR0
Page 425 of 501
—
RY/BY
CPU rew rite mode select bit
Block 0, 1, 2, 3 rew rite enable
bit
Flash memory stop bit
Reserved bit
Program status flag
Erase status flag
(2,6)
____
status flag
Address
Bit Name
01B7h
(4)
(4)
(3,5)
(1)
0 : Busy (During w riting or erasing)
1 : Ready
0 : CPU rew rite mode disabled
1 : CPU rew rite mode enabled
0 : Disables rew rite
1 : Enables rew rite
0 : Enables flash memory operation
1 : Stops flash memory
Set to 0
0 : Completed successfully
1 : Terminated by error
0 : Completed successfully
1 : Terminated by error
(Enters low -pow er consumption state
and flash memory is reset)
After Reset
00000001b
Function
20. Flash Memory
RW
RW
RW
RW
RW
RO
RO
RO
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