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參數(shù)資料
| 型號： | SM5964Ihhk |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8 - bit single chip microcontroller with 64KB flash & 1K byte RAM embedded |
| 中文描述： | 8 -位單片機具有64KB閃存 |
| 文件頁數(shù)： | 12/28頁 |
| 文件大?。?/td> | 539K |
| 代理商： | SM5964IHHK |
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July 2002
Specifications subject to change without notice,contact your sales representatives for the most recent information.
12/28
PID 5964 07/02
SyncMOS Technologies Inc. SM5964
overlay with the ISP service program space address, the flash program/page erase of ISP function executed thereafter will
have no effect.
ISP Flash Data Register (ISPFD,$F6)
FD7 ~ FD0: flash data for ISP function
The ISPFD provide the 8-bit data for ISP function.
ISP Flash Control Register (ISPC, $F7)
F[1: 0] : ISP function select bit
START : ISP function start bit
= 1 : start ISP function which indicated by bit 1, bit 0 (F1, F0)
= 0 : no operation
The START bit is read-only by default, software must write three specific values 55H, AAH and 55H sequentially to the
ISPFD register to enable the START bit write attribute. That is :
MOV ISPFD, #55H
MOV ISPFD, #AAH
MOV ISPFD, #55H
Any attempt to set START bit will not be allowed without the procedure above.
After START bit set to 1 then the SM5964 hardware circuit will latch address and data bus and hold the program counter until
the START bit reset to 0 when ISP function finished. User does not need to check START bit status by software method.
F[1:0] : ISP function select bit
bit-7
bit-0
Read:
Write:
Reset value:
FD7
FD6
FD5
FD4
FD3
FD2
FD1
FD0
0
0
0
0
0
0
0
0
bit-7
bit-0
Read:
Write:
Reset value:
START
Unused
Unused
Unused
Unused
Unused
F1
F0
0
*
*
*
*
*
0
0
F[1:0]
ISP function
00
Byte program
01
Chip protect
10
Page erase
11
Chip erase
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