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MPC8343ECVRADDB Scheda tecnica(PDF) 63 Page - NXP Semiconductors

Il numero della parte MPC8343ECVRADDB
Spiegazioni elettronici  MPC8343EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications
PDF  80 Pages
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Produttore elettronici  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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MPC8343ECVRADDB Scheda tecnica(HTML) 63 Page - NXP Semiconductors

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MPC8343EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 11
Freescale Semiconductor
63
Clocking
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 55
and Table 56 show the expected frequency values for the CSB frequency for select csb_clk to
CLKIN/PCI_SYNC_IN ratios.
1011
× 11
1100
× 12
1101
× 13
1110
× 14
1111
× 15
Table 55. CSB Frequency Options for Host Mode
CFG_CLKIN_DIV
at Reset1
SPMF
csb_clk :
Input Clock Ratio2
Input Clock Frequency (MHz)2
16.67
25
33.33
66.67
csb_clk Frequency (MHz)
Low
0010
2 : 1
133
Low
0011
3 : 1
100
200
Low
0100
4 : 1
100
133
266
Low
0101
5 : 1
125
166
333
Low
0110
6 : 1
100
150
200
Low
0111
7 : 1
116
175
233
Low
1000
8 : 1
133
200
266
Low
1001
9 : 1
150
225
300
Low
1010
10 : 1
166
250
333
Low
1011
11 : 1
183
275
Low
1100
12 : 1
200
300
Low
1101
13 : 1
216
325
Low
1110
14 : 1
233
Low
1111
15 : 1
250
Low
0000
16 : 1
266
Table 54. System PLL Multiplication Factors (continued)
RCWL[SPMF]
System PLL Multiplication Factor



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