mpc8313e Freescale Semiconductor, Inc, mpc8313e Datasheet - Page 74

• Manufacturer Part Number: mpc8313e
• Description: Mpc8313e Powerquicc Ii Pro Processor
• Manufacturer: Freescale Semiconductor, Inc

Clocking
1
19.3
Table 61
reference frequencies, with RCWLR[LBCM] = 0 and RCWLR[DDRCM] =1, such that the LBC operates
with a frequency equal to the frequency of csb_clk and the DDR controller operates at twice the frequency
of csb_clk.
74
SYS_CLK_
frequency is in the range of 400-800MHz.
PCI_CLK
Core VCO frequency = Core frequency × VCO divider. Note that VCO divider has to be set properly so that the core VCO
0–1
10
00
01
10
24.0
24.0
25.0
25.0
32.0
32.0
33.3
33.3
48.0
IN/
RCWL[COREPLL]
shows several possible frequency combinations that can be selected based on the indicated input
Example Clock Frequency Combinations
0010
0011
0011
0011
2–5
SPMF
6
5
6
5
5
4
5
4
3
1
vcod
MPC8313E PowerQUICC
2
2
2
2
2
2
2
2
2
2
6
1
0
0
0
576.0
480.0
600.0
500.0
640.0
512.0
666.0
532.8
576.0
vco
Table 60. e300 Core PLL Configuration (continued)
CSB(csb_
144.0
120.0
150.0
125.0
160.0
128.0
166.5
133.2
144.0
clk)
Table 61. System Clock Frequencies
core_clk : csb_clk Ratio
™
(ddr_clk)
II Pro Processor Hardware Specifications, Rev. 0
2.5:1
288.0
240.0
300.0
250.0
320.0
256.0
333.0
266.4
288.0
DDR
3:1
3:1
3:1
62.5 31.25 15.6
66.6 33.3 16.7
60
64
/2
41.63 20.8
37.5 18.8
LBC(lbc_clk)
36
30
40
32
36
/4
18.0
15.0
20.0
16.0
18.0
/8
Note 1
Note 1
Note 1
Note1
USB
ref
12.0
12.0
16.0
16.0
48.0
3
144.0
120.0
150.0
125.0
160.0
128.0
166.5
133.2
144.0
× 1
VCO divider
e300 Core(core_clk)
× 1.5
Freescale Semiconductor
216
180
225
188
240
192
250
200
216
8
2
4
8
288
240
300
250
320
256
333
266
288
× 2
1
× 2.5
360
300
375
313
320
333
360
360
375
384
400
× 3