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參數(shù)資料
| 型號(hào)： | SM89516AC40 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8 - Bit Micro-controller with 64KB flash 1KB RAM embedded |
| 中文描述： | 8 -位微控制器，64KB的快閃記憶體嵌入的1kB |
| 文件頁數(shù)： | 6/25頁 |
| 文件大小： | 535K |
| 代理商： | SM89516AC40 |
September 2002
Specifications subject to change without notice,contact your sales representatives for the most recent information.
6/25
Ver 1.2
SM89516A 09/02
SyncMOS Technologies Inc. SM89516A
Extension Function Description
1. Memory Structure
The SM89516A is the general 8052 hardware core as a single chip micro controller. Its memory structure follows general
8052 structure.
1.1 Program Memory
The SM89516A has 64K byte on-chip flash memory which used as general program memory. The address range for the 64K
byte is $0000 to $FFFF.
FFFF
64K Program
memory space
Note: The single flash block address structure for doing as well as program ROM flash.
1.2 Data Memory
The SM89516A has 1K bytes on-chip RAM, 256 bytes of it 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), or by
‘Bank mapping direct addressing mode’ as described in next page.
0000
FF
80
7F
00
FF
80
02FF
0000
Higher 128 bytes (Access by
indirect addressing mode only)
SFR (Accessed by direct
addressing mode only)
Lower 128 bytes (Accessed by
direct & indirect addressing mode)
Expanded 768 bytes RAM
(Accessed by direct external
addressing mode, by instruction
MOVX, or by Bank mapping
direct addressing mode)
(OME = 1)
On-chip expanded RAM address structure.
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