參數(shù)資料
型號： MC68HC11F1CFN2
廠商： Freescale Semiconductor
文件頁數(shù)： 108/158頁
文件大?。?/td> 0K
描述： IC MCU 512 EEPROM 2MHZ 68-PLCC
標(biāo)準(zhǔn)包裝： 18
系列： HC11
核心處理器： HC11
芯體尺寸： 8-位
速度： 2MHz
連通性： SCI，SPI
外圍設(shè)備： POR，WDT
輸入/輸出數(shù)： 30
程序存儲器類型： ROMless
EEPROM 大?。?/td> 512 x 8
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 4.75 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x8b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 68-LCC（J 形引線）
包裝： 管件
OPERATING MODES AND ON-CHIP MEMORY
TECHNICAL DATA
4-15
Recall that zeros must be erased by a separate erase operation before programming.
The following example of how to program an EEPROM byte assumes that the appro-
priate bits in BPROT have been cleared and the data to be programmed is present in
accumulator A.
4.4.1.2 EEPROM Bulk Erase
To erase the EEPROM, ensure that the proper bits of the BPROT register are cleared,
then complete the following steps using the PPROG register:
1. Write to PPROG with the ERASE, EELAT, and appropriate BYTE and ROW
bits set.
2. Write to the appropriate EEPROM address with any data. Row erase only re-
quires a write to any location in the row. Bulk erase is accomplished by writing
to any location in the array.
3. Write to PPROG with ERASE, EELAT, EEPGM, and the appropriate BYTE and
ROW bits set.
4. Delay for 10 ms or more, as appropriate.
5. Clear the EEPGM bit in PPROG to turn off the high voltage.
6. Return to step 1 for next byte or row or proceed to step 7.
7. Clear the PPROG register to reconfigure the EEPROM address and data buses
for normal operation.
The following is an example of how to bulk erase the 512-byte EEPROM. The CONFIG
register is not affected in this example. When bulk erasing the CONFIG register, CON-
FIG and the 512-byte array are all erased.
4.4.1.3 EEPROM Row Erase
The following example shows how to perform a fast erase of large sections of EE-
PROM and assumes that index register X contains the address of a location in the de-
sired row.
PROG
LDAB
#$02
EELAT=1, EEPGM=0
STAB
$103B
Set EELAT bit
STAA
$FE00
Store data to EEPROM address
LDAB
#$03
EELAT=1, EEPGM=1
STAB
$103B
Turn on programming voltage
JSR
DLY10
Delay 10 ms
CLR
$103B
Turn off high voltage and set to READ mode
BULKE
LDAB
#$06
ERASE=1, EELAT=1, EEPGM=0
STAB
$103B
Set EELAT bit
STAB
$FE00
Store any data to any EEPROM address
LDAB
#$07
EELAT=1, EEPGM=1
STAB
$103B
Turn on programming voltage
JSR
DLY10
Delay 10 ms
CLR
$103B
Turn off high voltage and set to READ mode
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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MC68HC11F1CFN3R2 功能描述:IC MCU 512 EEPROM 3MHZ 68-PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND
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