SM59D03G2 Datasheet, PDF (15/67 Pages) SyncMOS Technologies,Inc – 8-Bits Micro-controller

SM59D03G2
8-Bits Micro-controller
8KB+ ISP Flash & 1KB RAM embedded
3FFF
N=0
3E00
N=1
3C00
3A00
3800
3600
3400
N=6
3200
N=7
3000 N=8
1FFF
SM59D03G2
0000
Fig 3-1：Flash segmentation for ISP
The SM59D03G2 provides code protect function on the writer. The user can select protect or
unprotect by writer. If protection is selected, users can’t read the program from the writer. When the
user runs in the external program mode (EA = 0) and protect bit is set and the MOVC instruction will
be disable by hardware. The only way to change the protection bit back is to erase the entire Flash.
3.2 Data Memory
The SM59D03G2 has 256 + 768 bytes on-chip RAM, the 256 bytes are the same as general 8052
internal memory structure while the expanded 768 bytes on-chip RAM can be accessed by external
memory addressing method( by instruction MOVX).
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M030
15
Ver.C SM59D03G2 07/2009