參數(shù)資料
型號: MC68HLC705KJ1C
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP16
封裝: PLASTIC, DIP-16
文件頁數(shù): 77/144頁
文件大?。?/td> 1575K
代理商: MC68HLC705KJ1C
Technical Data
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 3.0
38
Memory
MOTOROLA
Memory
3.6.1 EPROM/OTPROM Programming
The two ways to program the EPROM/OTPROM are:
Manipulating the control bits in the EPROM programming register
to program the EPROM/OTPROM on a byte-by-byte basis
Programming the EPROM/OTPROM with the M68HC705J
In-Circuit Simulator (M68HC705JICS) available from Motorola
3.6.2 EPROM Programming Register
The EPROM programming register (EPROG) contains the control bits
for programming the EPROM/OTPROM.
ELAT — EPROM Bus Latch Bit
This read/write bit latches the address and data buses for
EPROM/OTPROM programming. Clearing the ELAT bit automatically
clears the EPGM bit. EPROM/OTPROM data cannot be read while
the ELAT bit is set. Reset clears the ELAT bit.
1 = Address and data buses configured for EPROM/OTPROM
programming the EPROM
0 = Address and data buses configured for normal operation
MPGM — MOR Programming Bit
This read/write bit applies programming power from the IRQ/VPP pin
to the mask option register. Reset clears MPGM.
1 = Programming voltage applied to MOR
0 = Programming voltage not applied to MOR
Address:
$0018
Bit 7
6
54321
Bit 0
Read:
0
ELAT
MPGM
EPGM
Write:
RRRR
Reset:
00
000000
= Unimplemented
R
= Reserved
Figure 3-3. EPROM Programming Register (EPROG)
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