SM59R02G1 Datasheet, PDF (55/57 Pages) SyncMOS Technologies,Inc – Instruction-set compatible with MCS-51

SM59R02G1
8-Bit Micro-controller
8KB with ISP Flash
& 256B RAM embedded
ISPF[2:0]
ISP function
000
Byte program
001
Chip protect
010
Page erase
011
Chip erase
100
Write option
101
Read option
110
Erase option
111
Finish Flag
One page of flash memory is 256 byte
The Option function can access the Internal reset time select(description in section
1.4.1)、clock source select(description in section 1.5)、P4[4:7] pins function
select(description in section 5)、WDTEN control bit(description in section 9)、or ISP
entry mechanisms select(description in section 13).
When chip protected or no ISP service, option can only read.
The choice ISP function will start to execute once the software write data to ISPFC register.
To perform byte program/page erases ISP function, user need to specify flash address at first. When
performing page erase function, SM59R02G1 will erase entire page which flash address indicated by ISPFAH
& ISPFAL registers located within the page.
e.g. flash address: $XYMN
page erase function will erase from $XY00 to $XYFF
To perform the chip erase ISP function, SM59R02G1 will erase all the flash program memory except the ISP
service program space. To perform chip protect ISP function, the SM59R02G1 flash memory content will be
read #00H.
e.g. ISP service program to do the byte program - to program #22H to the address $1005H
MOV TAKEY, #55h
MOV TAKEY, #AAh
MOV TAKEY, #5Ah
MOV IFCON, #01H
MOV ISPFAH, #10H
MOV ISPFAL, #05H
MOV ISPFD, #22H
MOV ISPFC, #00H
; enable ISPE write attribute
; enable SM59R02G1 ISP function
; set flash address-high, 10H
; set flash address-low, 05H
; set flash data to be programmed, data = 22H
; start to program #22H to the flash address $1005H
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M061
55
Ver.G SM59R02G1 09/2015