参数资料
型号: MPC8349EVVALFA
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 667 MHz, MICROPROCESSOR, PBGA672
封装: 35 X 35 MM, 1.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, TBGA-672
文件页数: 104/112页
文件大小: 1295K
代理商: MPC8349EVVALFA
MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
91
Clocking
19.1
System PLL Configuration
The system PLL is controlled by the RCWL[SPMF] parameter. Table 57 shows the multiplication factor
encodings for the system PLL.
As described in Section 19, “Clocking,” The LBIUCM, DDRCM, and SPMF parameters in the reset
configuration word low and the CFG_CLKIN_DIV configuration input signal select the ratio between the
primary clock input (CLKIN or PCI_CLK) and the internal coherent system bus clock (csb_clk). Table 58
and Table 59 show the expected frequency values for the CSB frequency for select csb_clk to
CLKIN/PCI_SYNC_IN ratios.
Table 57. System PLL Multiplication Factors
RCWL[SPMF]
System PLL Multiplication
Factor
0000
× 16
0001
Reserved
0010
× 2
0011
× 3
0100
× 4
0101
× 5
0110
× 6
0111
× 7
1000
× 8
1001
× 9
1010
× 10
1011
× 11
1100
× 12
1101
× 13
1110
× 14
1111
× 15
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