參數(shù)資料
型號: MC68HRC705J1ADWR2
廠商: MOTOROLA 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): 96/162頁
文件大小: 1517K
代理商: MC68HRC705J1ADWR2
Memory
Mask Option Register
MC68HC705J1A — Rev. 3.0
Technical Data
MOTOROLA
Memory
39
Take these steps to program the mask option register:
1. Apply the programming voltage, VPP, to the IRQ/VPP pin.
2. Write to the MOR.
3. Set the MPGM bit and wait for a time, tMPGM.
4. Clear the MPGM bit.
5. Reset the MCU.
SOSCD — Short Oscillator Delay Bit
The SOSCD bit controls the oscillator stabilization counter. The
normal stabilization delay following reset or exit from stop mode is
4064 tcyc. Setting SOSCD enables a short oscillator stabilization
delay.
1 = Short oscillator delay enabled
0 = Short oscillator delay disabled
EPMSEC — EPROM Security Bit
The EPMSEC bit controls access to the EPROM/OTPROM.
1 = External access to EPROM/OTPROM denied
0 = External access to EPROM/OTPROM not denied
OSCRES — Oscillator Internal Resistor Bit
The OSCRES bit enables a 2-M
internal resistor in the oscillator
circuit.
1 = Oscillator internal resistor enabled
0 = Oscillator internal resistor disabled
NOTE:
Program the OSCRES bit to logic 0 in devices using RC oscillators.
Address:
$07F1
Bit 7
654321
Bit 0
Read:
SOSCD
EPMSEC OSCRES
SWAIT
SWPDI
PIRQ
LEVEL
COPEN
Write:
Reset:
00000000
Figure 2-4. Mask Option Register (MOR)
相關(guān)PDF資料
PDF描述
MC68HSR705J1ACDWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HC705J1ADWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HC705J1ADWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HSR705J1ADWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HRC705J1ACDWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
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