參數(shù)資料
型號(hào)： SM59264
廠商： Electronic Theatre Controls, Inc.
英文描述： 8 - Bit Micro-controller
中文描述： 8 -位微控制器
文件頁(yè)數(shù)： 15/32頁(yè)
文件大?。?/td> 579K
代理商： SM59264
May 2002
Specifications subject to change without notice,contact your sales representatives for the most recent information.
15/32 Ver 1.0 PID 59264 05/02
SyncMOS Technologies Inc. SM59264
ISP Registers - Flash Data Register (ISPFD, $F6)
FD7 ~FD0 : flash data for ISP function
The ISPFD provide the 8-bit data for ISP function
ISP Registers - Flash Control Register (ISPC, $F7)
ISPF[1:0] : ISP function select bit
START : ISP function start bit
= 1 : start ISP function which indicated by bit 1, bit 0 (ISPF1, ISPF0)
= 0 : no operation
FAU0 : 64K program Flash or 64K Data Flash select bit
= 1 : selected 64K data flash
= 0 : selected 64K program flash
Note: 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 SM59264 hardware circuit will latch flash address and data bus and hold the program
counter until the START bit reset to 0 when ISP function finished. The program counter (PC) will point to next instruction
after START bit reset to 0. User does not need to check START bit status by software method.
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
FAU0
Unused
Unused
Unused
ISPF1
ISPF0
0
0
0
0
0
0
0
0
ISPF [1:0] ISP function
00
Byte program
01
Chip protect
10
Page erase (512Byte)
11
Chip erase
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