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型號(hào)：	R4F2116BG20V
元件分類：	微控制器/微處理器
英文描述：	16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PBGA176
封裝：	13 X 13 MM, 0.80 MM PITCH, PLASTIC, LFBGA-176
文件頁(yè)數(shù)：	595/842頁(yè)
文件大?。?/td>	5188K
代理商：	R4F2116BG20V

Section 19 Flash Memory (0.18-

m F-ZTAT Version)

Rev. 1.00 Mar. 02, 2006 Page 594 of 798

REJ09B0255-0100

2. Download of on-chip program

The on-chip program is automatically downloaded by setting the flash key code register

(FKEY) and the SCO bit in the flash code control status register (FCCS), which are

programming/erasing interface registers.

The flash memory MAT is replaced with the embedded program storage MAT during

downloading. Since the flash memory cannot be read during programming/erasing, the

procedure program that executes download to completion of programming/erasing must be

executed in a space other than flash memory (for example, on-chip RAM).

Since the result of download is returned to the programming/erasing interface parameter,

whether download has succeeded or not can be confirmed.

3. Initialization of programming/erasing

Set the operating frequency before execution of programming/erasing. This setting is

performed by using the programming/erasing interface parameter.

4. Execution of programming/erasing

For programming/erasing execution, set the FLSHE bit in STCR and the FWE pin to 1 to make

a transition to user program mode.

The program data/programming destination address is specified in 128-byte units for

programming. The block to be erased is specified in erase-block units for erasing.

Make these specifications by using the programming/erasing interface parameter, and then

initiate the on-chip program. The on-chip program is executed by using the JSR or BSR

instruction to execute the subroutine call of the specified address in the on-chip RAM. The

execution result is returned to the programming/erasing interface parameter.

The area to be programmed must be erased in advance when programming flash memory. All

interrupts must be disabled during programming and erasing. Interrupts must be masked within

the user system.

5. Consecutive execution of programming/erasing

When the 128-byte programming or one-block erasure does not end the processing, the

program address/data and erase-block number must be updated and consecutive

programming/erasing is required.

Since the downloaded on-chip program remains in the on-chip RAM even after the processing

ends, download and initialization are not required when the same processing is executed

consecutively.

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相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
R4F2116VBG20V	制造商:Renesas Electronics Corporation 功能描述:MCU 3V 128K,PB-FREE 176-BGA - Trays
R4F2117VBG	制造商:Renesas Electronics Corporation 功能描述:
R4F2117VBG20V	制造商:Renesas Electronics Corporation 功能描述:
R4F2117VLP	制造商:Renesas Electronics Corporation 功能描述:
R4F2117VTE	制造商:Renesas Electronics Corporation 功能描述:MCU, FLASH, 20MHZ, 3.0 TO 3.6V - Trays

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