參數(shù)資料
型號(hào): MC68HC05L16CFU
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, QFP-80
文件頁數(shù): 44/146頁
文件大?。?/td> 852K
代理商: MC68HC05L16CFU
MC68HC705L16
MC68HC05L16 MC68HC705L16 Data Sheet, Rev. 4.1
138
Freescale Semiconductor
A.10.2 Program Control Register
A program control register is provided for EPROM programming.
Bits 7–3 — Reserved
These bits are reserved and read as logic 0 in user mode.
Bit 2 — Reserved
This bit is not used and always reads as logic 0.
ELAT — EPROM LATch control
0 = EPROM address and data bus configured for normal reads
1 = EPROM address and data bus configured for programming (Writes to EPROM cause address
and data to be latched.) EPROM is in programming mode and cannot be read if ELAT is logic
1. This bit should not be set when no programming voltage is applied to the VPP pin.
PGM — EPROM ProGraM command
0 = Programming power switched off from EPROM array
1 = Programming power switched on to EPROM array
If ELAT
1, then PGM = 0.
Address:
$000D
Bit 7
654321
Bit 0
Read:
RRRRRR
ELAT
PGM
Write:
Reset:
00000000
R= Reserved
Figure A-5. Program Control Register (PCR)
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