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SM89516AL25 데이터시트(PDF) 11 Page - SyncMOS Technologies,Inc |
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SM89516AL25 데이터시트(HTML) 11 Page - SyncMOS Technologies,Inc |
11 / 22 page SyncMOS Technologies International, Inc. SM89516A 8-Bits Micro-controller With 64KB flash & 1KB RAM embedded Specifications subject to change without notice contact your sales representatives for the most recent information. Ver 2.1 SM89516A 08/2006 11 5.2 SPWM Registers - P1CON, SPWMC, SPWMD[4:0] SPWM Registers - Port1 Configuration Register (P1CON, $9B) bit-7 bit-0 SPWME4 SPWME3 SPWME2 SPWME1 SPWME0 Unused Unused Unused Read / Write: R/W R/W R/W R/W R/W - - - Reset value: 0 0 0 0 0 * * * SPWME[4:0] : When the bit set to one, the corresponding SPWM pin is active as SPWM function. When the bit reset to zero, the corresponding SPWM pin is active as I/O pin. Five bits are cleared upon reset. SPWM Registers -SPWM Control Register (SPWMC, $A3) bit-7 bit-0 Unused Unused Unused Unused Unused Unused SPFS1 SPFS0 Read / Write: - - - - - - R/W R/W Reset value: * * * * * * 0 0 SPFS[1:0] : These two bits is 2’s power parameter to form a frequency divider for input clock. SPFS1 SPFS0 Divider SPWM clock, Fosc=20MHz SPWM clock, Fosc=24MHz 0 0 2 10MHz 12MHz 0 1 4 5MHz 6MHz 1 0 8 2.5MHz 3MHz 1 1 16 1.25MHz 1.5MHz SPWM Registers -SPWM Data Register (SPWMD[4:0], $AC, $A7 ~$A4) bit-7 bit-0 SPWMD [4:0]4 SPWMD [4:0]3 SPWMD [4:0]2 SPWMD [4:0]1 SPWMD [4:0]0 BRM [2:0]2 BRM [2:0]1 BRM [2:0]0 Read / Write: R/W R/W R/W R/W R/W R/W R/W R/W Reset value: 0 0 0 0 0 0 0 0 SPWMD[4:0] : content of SPWM Data Register. It determines duty cycle of SPWM output waveform. BRM[2:0] : will insert certain narrow pulses among an 8-SPWM-cycle frame |
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