參數(shù)資料
型號(hào): R5F21114DFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
封裝: 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁(yè)數(shù): 88/227頁(yè)
文件大?。?/td> 2039K
代理商: R5F21114DFP
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R8C/11 Group
Rev.1.20
Jan 27, 2006
page 167 of 204
REJ09B0062-0120
17.4 CPU Rewrite Mode
In CPU rewrite mode, the user ROM area can be rewritten by executing software commands from the
CPU. Therefore, the user ROM area can be rewritten directly while the microcomputer is mounted on-
board without having to use a ROM programmer, etc. Make sure the Program and the Block Erase
commands are executed only on each block in the user ROM area.
For interrupts requested during an erase operation in CPU rewrite mode, the R8C/11 flash module offers
an "erase-suspend" feature which allow the erase operation to be suspended, and access made avail-
able to the flash.
During CPU rewrite mode, the user ROM area be operated on in either Erase Write 0 (EW0) mode or
Erase Write 1 (EW1) mode. Table 17.3 lists the differences between Erase Write 0 (EW0) and Erase
Write 1 (EW1) modes.
Table 17.3 EW0 Mode and EW1 Mode
Item
EW0 mode
EW1 mode
Operation mode
Single chip mode
Areas in which a
User ROM area
rewrite control
program can be located
Areas in which a
Must be transferred to any area other Can be executed directly in the user
rewrite control
than the flash memory (e.g., RAM)
ROM area
program can be executed before being executed
Areas which can be
User ROM area
rewritten
However, this does not include the
block in which a rewrite control program
exists(1)
Software command
None
Program, Block Erase command
limitations
Cannot be executed on any block in
which a rewrite control program exists
Read Status Register command
Cannot be executed
Modes after Program or
Read Status Register mode
Read Array mode
Erase
CPU status during Auto
Operating
Hold state (I/O ports retain the state in
Write and Auto Erase
which they were before the command
was executed)
Flash memory status
Read the FMR0 register FMR00,
Read the FMR0 register FMR00,
detection
FMR06, and FMR07 bits in a
FMR06, and FMR07 bits in a program
program
Execute the Read Status Register
command to read the status
register SR7, SR5, and SR4.
Conditions for
Set the FMR40 and FMR41 bits in
When an interrupt which is set for
transferring to
the FMR4 register to “1” by program. enabled occurs while the FMR40 bit in
erase-suspend
the FMR4 register is set to “1”.
NOTES:
1. Block 1 and Block 0 are enabled for rewrite by setting the FMR02 bit in the FMR0 register to “1” (rewrite
enabled).
17.4 CPU Rewrite Mode
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R5F21114DFP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 16KB Flash 3.3V/5V 32-Pin LQFP Tray 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 16KB FLASH 3.3V/5V 32LQFP - Trays 制造商:Renesas Electronics Corporation 功能描述:IC R8C MCU FLASH 32LQFP 制造商:Renesas Electronics Corporation 功能描述:16BIT MCU FLASH 16K SMD LQFP32 制造商:Renesas Electronics Corporation 功能描述:IC SM 16-BIT MCU WAFFLE130 制造商:Renesas Electronics Corporation 功能描述:16BIT MCU FLASH 16K, SMD, LQFP32 制造商:Renesas 功能描述:MCU 16-Bit R8C CISC 16KB Flash 3.3V/5V 32-Pin LQFP Tray
R5F21114DFP#V0 功能描述:IC R8C MCU FLASH 32LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:R8C/1x/11 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設(shè)備:POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB(20K x 16) 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
R5F21114DFP#W4 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 16KB FLASH 3.3V/5V 32LQFP - Tape and Reel
R5F21114FP 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 16KB Flash 3.3V/5V 32-Pin LQFP 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 16KB FLASH 3.3V/5V 32LQFP - Trays 制造商:Renesas Electronics Corporation 功能描述:R5F21114FP
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