R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 531
R5F21324ANSP#U1
Manufacturer Part Number
R5F21324ANSP#U1
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Ar
Datasheet
1.R5F21322ANSPU1.pdf
(629 pages)
Specifications of R5F21324ANSP#U1
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
15
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
20-LSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Under development
R8C/32A Group
REJ09B0458-0020 Rev.0.20
Page 501 of 583
Figure 30.3
Figure 30.4
30.4.8
EW0 Mode Execution Procedure
(When Rewriting User ROM)
Figure 30.3 shows How to Set and Exit EW0 Mode and Figure 30.4 shows How to Set and Exit EW0 Mode
(When Rewriting Data Flash) and EW1 Mode.
FMR01: Bit in FMR0 register
Note:
Transfer the rewrite mode program that uses
CPU rewrite mode to the RAM
Jump to the rewrite control program transferred
to the RAM
(The subsequent process is executed by the
rewrite control program in the RAM)
To set the FMR01 bit to 1, first write 0 and then 1 immediately. Do not generate an interrupt between writing 0 and writing 1.
Writing to the FMR01 bit must be performed in the RAM.
How to Set and Exit Each Mode
Preliminary specification
Specifications in this manual are tentative and subject to change.
How to Set and Exit EW0 Mode
How to Set and Exit EW0 Mode (When Rewriting Data Flash) and EW1 Mode
EW0 Mode Execution Procedure (When Rewriting Data Flash)
EW1 Mode Execution Procedure
FMR01, FMR02: Bits in FMR0 register
Notes:
1. To set the FMR01 bit to 1, first write 0 and then 1 immediately.
2. Not required when rewriting the data flash in EW0 mode.
Do not generate an interrupt between writing 0 and writing 1.
Nov 05, 2008
After writing 0 to the FMR01 bit,
write 1 (CPU rewrite mode enabled)
After writing 0 to the FMR02 bit,
write 1 (EW1 mode)
Write 0 (CPU rewrite mode disabled) to
the FMR01 bit
Execute software commands
Program in ROM
Rewrite control program
(2)
Jump to the specified address in the flash memory
After writing 0 to the FMR01 bit,
write 1 (CPU rewrite mode enabled)
Write 0 (CPU rewrite mode disabled) to
the FMR01 bit
Execute software commands
(1)
30. Flash Memory
(1)
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