参数资料
型号: MC68HSC05K0P
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PDIP16
封装: PLASTIC, DIP-16
文件页数: 145/154页
文件大小: 1544K
代理商: MC68HSC05K0P
Technical Data
MC68HC05K0 MC68HC05K1 — Rev. 2.0
90
Personality EPROM (MC68HC05K1 Only)
MOTOROLA
Technical Data
9.4 PEPROM Programming
Factory-provided software for programming the PEPROM is available
through the Motorola Web site at:
htt://mcu.motsps.com
The circuit shown in Figure 9-4 can be used to program the PEPROM
with the factory-provided programming software.
NOTE:
The personality EPROM cannot be erased in parts offered without the
windowed package.
To program the PEPROM, VDD must be greater than 4.5 Vdc.
The PEPROM also can be programmed by user software with VPP
applied to the IRQ/VPP pin. This sequence shows how to program each
PEPROM bit:
1. Select a PEPROM bit by writing to PEBSR.
2. Set the PEPGM bit in PESCR.
3. Wait 3 ms.
4. Clear the PEPGM bit.
NOTE:
While the PEPGM bit is set and VPP is applied to the IRQ/VPP pin, do not
access bits that are to be left unprogrammed (erased).
In the 3-pin RC oscillator configuration, the PEPROM cannot be
programmed by user software. If the voltage on IRQ/VPP is raised above
VDD, the oscillator will revert to a 2-pin oscillator configuration and
device operation will be disrupted. The 2-pin RC and crystal
configurations are not affected.
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