MPC8358E_11 FREESCALE [Freescale Semiconductor, Inc], MPC8358E_11 Datasheet - Page 77

• Manufacturer Part Number: MPC8358E_11
• Description: PowerQUICC II Pro Processor Revision 2.1 PBGA Silicon
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

The system VCO frequency is derived from the following equations:
As described in
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).
shows the expected frequency values for the CSB frequency for select csb_clk to CLKIN/PCI_SYNC_IN
ratios.
Freescale Semiconductor
•
•
•
CFG_CLKIN_DIV
csb_clk = {PCI_SYNC_IN × (1 + CFG_CLKIN_DIV)} × SPMF
System VCO Frequency = csb_clk × VCO divider (if both RCWL[DDRCM] and RCWL[LBCM]
are cleared)
OR
System VCO frequency = 2 × csb_clk × VCO divider (if either RCWL[DDRCM] or
RCWL[LBCM] are set).
at Reset
MPC8358E PowerQUICC II Pro Processor Revision 2.1 PBGA Silicon Hardware Specifications, Rev. 3
High
High
High
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
1
Section 22, “Clocking,”
SPMF
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0000
0010
0011
0100
0101
Table 70. CSB Frequency Options
the LBCM, DDRCM, and SPMF parameters in the reset
Input Clock Ratio
csb_clk :
10:1
11:1
12:1
13:1
14:1
15:1
16:1
2:1
3:1
4:1
5:1
6:1
7:1
8:1
9:1
2:1
3:1
4:1
5:1
2
100
116
133
150
166
183
200
216
16.67
233
250
266
Input Clock Frequency (MHz)
csb_clk Frequency (MHz)
100
125
150
175
200
225
250
275
300
325
25
33.33
100
133
166
200
233
266
300
333
100
133
166
2
Table 70
66.67
133
200
266
333
133
200
266
333
Clocking
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