参数资料
型号: MPC8306CVMADDCA
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 266 MHz, RISC PROCESSOR, PBGA369
封装: 19 X 19 MM, 1.61 MM HEIGHT, 0.80 MM PITCH, LEAD FREE, MAPBGA-369
文件页数: 60/76页
文件大小: 474K
代理商: MPC8306CVMADDCA
MPC8306 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 0
Freescale Semiconductor
63
Clocking
coherent system bus clock (csb_clk). Table 56 shows the expected frequency values for the CSB frequency
for selected csb_clk to SYS_CLK_IN ratios.
22.3
Core PLL Configuration
RCWL[COREPLL] selects the ratio between the internal coherent system bus clock (csb_clk) and the e300
core clock (core_clk). Table 57 shows the encodings for RCWL[COREPLL]. COREPLL values not listed
in Table 57 should be considered reserved.
Table 55. System PLL Multiplication Factors
RCWL[SPMF]
System PLL Multiplication Factor
0000
Reserved
0001
Reserved
0010
× 2
0011
× 3
0100
× 4
0101
× 5
0110
× 6
0111–1111
Reserved
Table 56. CSB Frequency Options
SPMF
csb_clk : sys_clk_in Ratio
SYS_CLK_IN(MHz)
25
33.33
66.67
csb_clk Frequency (MHz)
0010
2:1
133
0011
3:1
0100
4:1
133
0101
5:1
125
0110
6:1
Table 57. e300 Core PLL Configuration
RCWL[COREPLL]
core_clk : csb_clk Ratio
VCO Divider
0-1
2-5
6
nn
0000
n
PLL bypassed
(PLL off, csb_clk clocks core directly)
PLL bypassed
(PLL off, csb_clk clocks core directly)
00
0001
0
1:1
2
01
0001
0
1:1
4
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