參數(shù)資料
型號(hào): MC68HC705JJ7CDW
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
封裝: SOIC-20
文件頁數(shù): 85/164頁
文件大?。?/td> 1165K
代理商: MC68HC705JJ7CDW
COP Register
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
27
2.7 COP Register
As shown in Figure 2-5, a register location is provided at $1FF0 to set the EPROM security(1), select the
optional features, and reset the COP watchdog timer. The OPT bit controls the function of the PB4 port
pin and the availability to add an offset to any measured analog voltages. See 8.4 Analog Status Register
for more information
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the EPROM/OTPROM
difficult for unauthorized users.
Address: $1FF0
$1FF0
Bit 7
6
5
4321
Bit 0
Read:
OPT
Write:
EPMSEC
COPC
Reset:
Unaffected by reset
= Unimplemented
Figure 2-5. COP and Security Register (COPR)
相關(guān)PDF資料
PDF描述
MC68HC705JJ7CP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP20
MC68HC705JJ7S 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER, CDIP20
MC68HC705K1DWR2 8-BIT, OTPROM, MICROCONTROLLER, PDSO16
MC68HC705K1CP 8-BIT, OTPROM, MICROCONTROLLER, PDIP16
MC68HC705K1P 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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