參數(shù)資料
型號: MC56F8355VFG60
廠商: MOTOROLA INC
元件分類: 數(shù)字信號處理
英文描述: 4-BIT, 120 MHz, OTHER DSP, PQFP128
封裝: LQFP-128
文件頁數(shù): 78/152頁
文件大?。?/td> 2224K
代理商: MC56F8355VFG60
Registers
56F8355 Technical Data
31
Preliminary
3.2.3
External Clock Source
The recommended method of connecting an external clock is illustrated in Figure 3-4. The external
clock source is connected to XTAL and the EXTAL pin is grounded. Set OCCS_COHL bit high when
using an external clock source as well.
Figure 3-4 Connecting an External Clock Signal Register
3.3 Registers
When referring to the register definitions for the OCCS in the 56F8300 Peripheral User Manual, use
the register definitions without the internal Relaxation Oscillator, since the 56F8355 does NOT
contain this oscillator.
56F8355
XTAL
EXTAL
External
VSS
Clock
Note: When using an external clocking source
with this configuration, the input “CLKMODE”
should be high and the COHL bit in the OSCTL
register should be set to 1.
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