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SM8958A Arkusz danych(PDF) 6 Page - SyncMOS Technologies,Inc |
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SM8958A Arkusz danych(HTML) 6 Page - SyncMOS Technologies,Inc |
6 / 25 page September 2002 Specifications subject to change without notice,contact your sales representatives for the most recent information. 6/25 Ver 1.0 PID 8958A 09/02 SyncMOS Technologies Inc. SM8958A Extension Function Description 1. Memory Structure The SM8958A is the general 8052 hardware core as a single chip micro controller. Its memory structure follows general 8052 structure. 1.1 Program Memory The SM8958A has 32K byte on-chip flash memory which used as general program memory. The address range for the 32K byte is $0000 to $7FFF. 32K Program memory space 7FFF Note: The single flash block address structure for doing as well as program ROM flash. 1.2 Data Memory The SM8958A 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. |
Podobny numer części - SM8958A |
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Podobny opis - SM8958A |
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