W79E217A Datasheet, PDF (15/207 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E217A Data Sheet
PAGE
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
START ADDRESS
0000h
0040h
0080h
00C0h
0100h
0140h
0180h
01C0h
0200h
0240h
0280h
02C0h
0300h
0340h
0380h
03C0h
END ADDRESS
003Fh
007Fh
00BFh
00FFh
013Fh
017Fh
01BFh
01FFh
023Fh
027Fh
02BFh
02FFh
033Fh
037Fh
03BFh
03FFh
PAGE
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
START ADDRESS
0400h
0440h
0480h
04C0h
0500h
0540h
0580h
05C0h
0600h
0640h
0680h
06C0h
0700h
0740h
0780h
07C0h
Table 6-3: W79E217 NVM page (n) area definition table
END ADDRESS
043Fh
047Fh
04BFh
04FFh
053Fh
057Fh
05BFh
05FFh
063Fh
067Fh
06BFh
06FFh
073Fh
077Fh
07BFh
07FFh
It has a dedicated On-Chip RC Oscillator that is fixed at 6MHz +/- 25% frequency to support clock
source for the 2K NVM data Flash Memory. The on chip oscillator is enabled only during program or
erase operation, through EWR or EER in NVMCON SFR. EWR or EER bits are cleared by hardware
after program or erase operation completed. The program/erase time is automatically controlled by
hardware.
Figure 6-3: NVM control
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Publication Release Date: December 14, 2007
Revision A3.0