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SM320VC33 Datasheet(PDF) 11 Page - Texas Instruments |
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SM320VC33 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 54 page SM320VC33, SMJ320VC33 DIGITAL SIGNAL PROCESSOR SGUS034E - FEBRUARY 2001 - REVISED OCTOBER 2002 11 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251-1443 memory map (continued) FSX/DX/CLKX Serial Port Control FSR/DR/CLKR Serial Port Control Serial R/X Timer Control Serial R/X Timer Counter Serial R/X Timer Period Register Data-Transmit Data-Receive Primary-Bus Control DMA Global Control DMA Source Address DMA Destination Address DMA Transfer Counter Timer 0 Global Control Timer 0 Counter Timer 0 Period Register Timer 1 Global Control Timer 1 Counter Timer 1 Period Register Serial Global Control 808000h 808004h 808006h 808008h 808020h 808024h 808028h 808030h 808034h 808038h 808040h 808042h 808043h 808044h 808045h 808046h 808048h 80804Ch 808064h NOTE A: Shading denotes reserved address locations. Figure 3. Peripheral Bus Memory-Mapped Registers clock generator The clock generator provides clocks to the VC33 device, and consists of an internal oscillator and a phase-locked loop (PLL) circuit. The clock generator requires a reference clock input, which can be provided by using a crystal resonator with the internal oscillator, or from an external clock source. The PLL circuit generates the device clock by multiplying the reference clock frequency by a x5 scale factor, allowing use of a clock source with a lower frequency than that of the CPU. The PLL is an adaptive circuit that, once synchronized, locks onto and tracks an input clock signal. |
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Descripción similar - SM320VC33 |
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