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參數(shù)資料
| 型號： | SMJ320C50GFA |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | DIGITAL SIGNAL PROCESSOR |
| 中文描述： | 數(shù)字信號處理器 |
| 文件頁數(shù)： | 11/54頁 |
| 文件大小： | 614K |
| 代理商： | SMJ320C50GFA |
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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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