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參數資料
型號: W79E201
廠商: WINBOND ELECTRONICS CORP
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數: 64/87頁
文件大小: 818K
代理商: W79E201
W79E201
- 64 -
NOP
1 M/C
NOP
1 M/C
CLR
POR
2 M/C
Example 5: Invalid Access
MOV
TA, #0AAh
3 M/C
NOP
1 M/C
MOV
TA, #055h
3 M/C
SETB EWT
2 M/C
In the first two examples, the writing to the protected bits is done before the 3 machine cycle window
closes. In Example 3, however, the writing to the protected bit occurs after the window has closed,
and so there is effectively no change in the status of the protected bit. In Example 4, the second write
to TA occurs 4 machine cycles after the first write, therefore the timed access window in not opened at
all, and the write to the protected bit fails.
17. H/W REBOOT MODE (BOOT FROM 4K BYTES OF LD FLASH EPROM)
The W79E201 boots from AP Flash EPROM program (16K bytes) by default at the external reset. On
some occasions, user can force W79E201 to boot from the LD Flash EPROM program (4K bytes) at
the external reset. The set for this special mode is as follow. It is necessary to add 10K resistor on
P4.0 pins.
Reboot Mode
OPTION BITS
RST
P4.0
MODE
Bit3 L
H
L
REBOOT
P4.0
RST
20 US
The Reset Timing For Entering
REBOOT Mode
10 mS
Hi-Z
Notes:
1: In application system design, user must take care the P4.0, ALE, /EA and /PSEN pin value at reset to avoid W79E201
entering the programming mode or REBOOT mode in normal operation.
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相關代理商/技術參數
參數描述
W79E201A16FL 功能描述:IC MCU 8-BIT 16K FLASH 44-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:W79 標準包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO,I²C,LIN,UART/USART 外圍設備:DMA,LVD,POR,PWM,WDT 輸入/輸出數:27 程序存儲器容量:16KB(16K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:38-SSOP 包裝:托盤
W79E201A16FN 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER
W79E201A16LN 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER
W79E201A16PL 功能描述:IC MCU 8-BIT 16K FLASH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:W79 標準包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO,I²C,LIN,UART/USART 外圍設備:DMA,LVD,POR,PWM,WDT 輸入/輸出數:27 程序存儲器容量:16KB(16K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:38-SSOP 包裝:托盤
W79E201A16PN 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER