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SM79164V16Q Datasheet(PDF) 10 Page - SyncMOS Technologies,Inc |
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SM79164V16Q Datasheet(HTML) 10 Page - SyncMOS Technologies,Inc |
10 / 25 page Specifications subject to change without notice,contact your sales representatives for the most recent information. 10/26 Ver 2.1 SM79164 08/2006 SyncMOS Technologies International. Inc. SM79164 The port 0, port2, port3.6 and port3.7 can be used as general purpose I/O pin while port0 is open-drain structure. System Control Register (SCONF, $BF) WDR : Watch Dog Timer Reset. OME : 3840 bytes on-chip RAM enable bit ALEI : ALE output inhibit bit, to reduce EMI Setting bit 0 (ALEI) of SCONF can inhibit the clock signal in Fosc/6Hz output to the ALE pin. The bit 1 (OME) of SCONF can enable or disable the on-chip expanded 3840 byte RAM. The default setting of OME bit is 0 (disable). The bit 7 (WDR) of SCONF is Watch Dog Timer Reset bit. It will be set to 1 when reset signal generated by WDT overflow. User should check WDR bit whenever un-predicted reset happened. RAMS3 RAMS2 RAMS1 RAMS0 MOVX @Ri i=0,1 mapping to expended RAM address 0 0 0 0 $0000 ~ $00FF 0 0 0 1 $0100 ~ $01FF 0 0 1 0 $0200 ~ $02FF 0 0 1 1 $0300 ~ $03FF 0 1 0 0 $0400 ~ $04FF 0 1 0 1 $0500 ~ $05FF 0 1 1 0 $0600 ~ $06FF 0 1 1 1 $0700 ~ $07FF 1 0 0 0 $0800 ~ $08FF 1 0 0 1 $0900 ~ $09FF 1 0 1 0 $0A00 ~ $0AFF 1 0 1 1 $0B00 ~ $0BFF 1 1 0 0 $0C00 ~ $0CFF 1 1 0 1 $0D00 ~ $0DFF 1 1 1 0 $0E00 ~ $0EFF bit-7 bit-0 WDR Unused Unused Unused Unused Unused OME ALEI Read / Write: R/W ----- R/W R/W Reset value: 0 ***** 0 0 |
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