SM59R16A5/SM59R09A5/SM59R05A5
8-Bit Micro-controller
64KB/36KB/20KB with ISP Flash
& 2KB RAM embedded
The ISPFD provide the 8-bit data register for ISP function.
Mnemonic: ISPFC
Address: E4H
7
6
5
4
3
-
2
1
0
Reset
00H
EMF1
EMF2
EMF3
EMF4
ISPF[2]
ISPF[1]
ISPF[0]
EMF1: Entry mechanism (1) flag, clear by reset. (Read only)
EMF2: Entry mechanism (2) flag, clear by reset. (Read only)
EMF3: Entry mechanism (3) flag, clear by reset. (Read only)
EMF4: Entry mechanism (4) flag, clear by reset. (Read only)
ISPF [2:0]: ISP function select bit.
ISPF[2:0]
000
ISP function
Byte program
Chip protect
Page erase
Chip erase
Write option
Read option
Erase option
-
001
010
011
100
101
110
111
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 10)、or ISP
entry mechanisms select(description in section 19)。
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, SM59R16A5 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, SM59R16A5 will erase all the flash program memory except the ISP
service program space. To perform chip protect ISP function, the SM59R16A5 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 SM59R16A5 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-M047 78 Ver.G SM59R16A5 01/2014
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
