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SM5964 Arkusz danych(PDF) 6 Page - SyncMOS Technologies,Inc |
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SM5964 Arkusz danych(HTML) 6 Page - SyncMOS Technologies,Inc |
6 / 28 page July 2002 Specifications subject to change without notice,contact your sales representatives for the most recent information. 6/28 PID 5964 07/02 SyncMOS Technologies Inc. SM5964 Ver 1.0 64K Program memory space ISP service program space, up to 4K FFFF FE00 FC00 FA00 F800 F600 F400 F200 F000 N=8 N=7 N=1 N=0 1.2 Data Memory The SM5964 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. Extension Function Description 1. Memory Structure The SM5964 is the general 8052 hardware core to integrate the ISP function module as a single chip microcontroller. Its memory structure follows general 8052 structure. 1.1 Program Memory The SM5964 has 64K byte on-chip flash memory which used as general program memory, on which include up to 4K byte specific ISP service program memory space. The address range for the 64K byte is $0000 to $FFFF. The address range for the ISP service program is $F000 to $FFFF. The ISP service program size can be partitioned as N blocks of 512 byte (N=0 to 8). When N=0 means no ISP service program space available, total 64K byte memory used as program memory. When N=1 means memory address $FE00 to $FFFF reserved for ISP service program. When N=2 means memory address $FC00 to FFFF reserved for ISP service program,...etc. Value N can be set and programmed into SM5964 by writer. Addr SFR Reset 7654 321 0 F4H ISPFAH 00H FA15 FA14 FA13 FA12 FA11 FA10 FA9 FA8 F5H ISPFAL 00H FA7 FA6 FA5 FA4 FA3 FA2 FA1 FA0 F6H ISPFD 00H FD7 FD6 FD5 FD4 FD3 FD2 FD1 FD0 F7H ISPC 0*****00 START F1 F0 |
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