MG87FE/L2051 MEGAWIN [Megawin Technology Co., Ltd], MG87FE/L2051 Datasheet - Page 12
MG87FE/L2051
Manufacturer Part Number
MG87FE/L2051
Description
8-bits microcontroll
Manufacturer
MEGAWIN [Megawin Technology Co., Ltd]
Datasheet
1.MG87FEL2051.pdf
(56 pages)
- Current page: 12 of 56
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6.2. On-Chip Data RAM
MG87FE/L2051/4051/6051 has internal data RAM that is mapped into three separate segments. They are lower
128 bytes of RAM, upper 128 bytes of RAM and 128 bytes Special Function Register (SFR).
6.2.1 Lower 128 bytes of RAM: (addresses 0x00 to 0x7F) are accessed by either direct or indirect addressing.
6.2.2 Upper 128 bytes of RAM: (addresses 0x80 to 0xFF) are accessed only by indirect addressing (using R0 or
6.2.3 The Special Function Registers: (addresses 0x80 to 0xFF) are accessed only by direct addressing.
This document information is the intellectual property of Megawin Technology.
© Megawin Technology Co., Ltd. 2009 All rights reserved.
QP-7300-03D
12/56
R1).
MEGAWIN
MAKE YOU WIN
30H
1FH
00H
20H
10H
08H
addressable
Bank2
Bank3
Bank1
Bank0
Bit
7FH
2FH
1FH
17H
0FH
07H
FFH
7FH
00H
Accessed by
Upper128
addressing
Lower128
indirect
accessed by
addressing
MG87FE/L2051/4051/6051
SFRs
direct
Preliminary, v 1.03
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