MA015 Datasheet, PDF (9/29 Pages) Megawin Technology Co., Ltd – Build-in watchdog timer

MA015 Datasheet
Version 2.00
6 Memory Organization
There are 320 bytes SRAM in MA015. They are working RAM (0000H to 00BFH), stacks (01C0H to 01FFH) and
general purpose RAM (0200H to 023FH). The address 0100H to 1BFH are shared with address 0000H to 00BFH.
The address 00C0H to 00FFH are special function registers area.
There are 128K bytes program/data ROM in MA015. It is combined with 32K program/data ROM and bank
switching data ROM. The ROM address from 8000H to FFEDH can store program and other data. There are six
banks in MA015 that is index by SFR. The default bank number is 00H after power on or reset. The bank select
function, ranged from 4000H to 7FFFH (16Kbyte/bank), is used for extending memories if the ROM size is more
than 32K bytes in MA015. The address mapping of MA015 is shown as below.
M em ory M ap
0000H ~ 00BFH
00C0H ~ 00FFH
0100H ~ 01BFH
01C0H ~ 01FFH
0200H ~ 023FH
0240H
3FFFH
4000H
7FFFH
8000H
Zero P age S R A M
SFR
-
S tack A rea
G eneral S R A M
Share area
T a b le
Bank
0
T ab le ₂
Bank
1
T a ble
Bank
5
3
P rogram /T able
BFFFH
C000H
FFEFH
FFF0H ~ FFFFH
P rogram /T able
Interrupt V ector
A rea
Figure 6-1 Memory Map
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 Megawin Technology Co., Ltd. 2011 All right reserved.
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