參數(shù)資料
型號(hào)： MC68HC705CL4FU
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 1.84 MHz, MICROCONTROLLER, PQFP80
封裝： QFP-80
文件頁(yè)數(shù)： 97/101頁(yè)
文件大?。?/td> 517K
代理商： MC68HC705CL4FU
February 12, 1997
GENERAL RELEASE SPECIFICATION
MC68HC05CL4
MOTOROLA
REV 2.0
A-1
APPENDIX A
MC68HC705CL4
This section describes the differences between the MC68HC705CL4 and the
MC68HC05CL4.
A.1
INTRODUCTION
The MC68HC705CL4 is an EPROM version of the MC68HC05CL4, and is
available for user system evaluation and debugging. The MC68HC705CL4 is
functionally identical to the MC68HC05CL4 with the exception of the EPROM
feature and the self-check routine is replaced by a bootstrap routine. Also, the
mask option for COP and LVR in the MC68HC05CL4 is replaced by an Option
Register in the MC68HC705CL4.
A.2
MEMORY
The MC68HC705CL4 has an 8K-byte memory map (see Figure A-1) consisting
of user EPROM, RAM, bootstrap ROM, and I/O.
A.2.1 Option Register ($1D)
This register can only be written once following a Power-On or External Reset, but
can be read at any time.
LVRE—Low Voltage Reset Enable
1 =
Low-Voltage-Reset enabled.
0 =
Low-Voltage-Reset disabled.
COP—Computer Operating Properly
1 =
COP watchdog reset enabled.
0 =
COP watchdog reset disabled.
Refer to Section 8 for detailed information on COP watchdog.
76543210
OPT
$001D
READ
COP
LVRE
WRITE
POR
U0U
U
U0U
U
U = UNAFFECTED
相關(guān)PDF資料
PDF描述
MC68HC705E1P 8-BIT, OTPROM, 1 MHz, MICROCONTROLLER, PDIP28
MC68HC705JB4P 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP28
MC68HC705L16CFU 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP80
MC68HC05L16CFU 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP80
MC68HC705P9CDWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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MC68HC705J1A 制造商:Freescale Semiconductor 功能描述:
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