VRS1000 데이터 시트보기 (PDF) - Unspecified
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VRS1000 Datasheet PDF : 47 Pages
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The windowed access to all the 1K on-chip RAM in the
range of 40h-7Fh is described in the following table.
TABLE 14: BANK MAPPING DIRECT ADDRESSING MODE
BS3 BS2 BS1 BSO
040h~07fh
mapping
address
0
0
0
0
000h-03Fh
0
0
0
1
040h-07Fh
0
0
1
0
080h-0BFh
0
0
1
1
0C0h-0FFh
0
1
0
0
0000h-003Fh
0
1
0
1
0040h-007Fh
0
1
1
0
0080h-00BFh
0
1
1
1 00C0h-00FFh
1
0
0
0
0100h-013Fh
1
0
0
1
0140h-017Fh
1
0
1
0
0180h-01BFh
1
0
1
1 01C0h-01FFh
1
1
0
0
0200h-023Fh
1
1
0
1
0240h-027Fh
1
1
1
0
0280h-02BFh
1
1
1
1 02C0h-02FFh
Note
Lower 128 byte
RAM
Lower 128 byte
RAM
Upper 128 byte
RAM
Upper 128 byte
RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
On-chip expanded
768 byte RAM
Example: User writes #55h to address 203h:
MOV DBANK, #8CH
MOV A, #55H
MOV 43H, A
;Set bank mapping 40h-07Fh to
0200h-023Fh
;Store #55H to A
;Write #55H to 0203h ;address
VRS1000
VERSA
Datasheet Rev 1.6
1134 Ste Catherine Street West, Suite 900, Montreal, Quebec, Canada H3B 1H4 Tel: (514) 871-2447 http://www.goalsemi.com
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