mpc8568e Freescale Semiconductor, Inc, mpc8568e Datasheet - Page 124

• Manufacturer Part Number: mpc8568e
• Description: Mpc8568e Powerquicc Iii Processor
• Manufacturer: Freescale Semiconductor, Inc

Clocking
23.5
23.5.1
Table 86
SYSCLK ratio in comparison to the memory bus clock speed.
124
SYSCLK Ratio
CCB clock to
10
12
16
20
2
3
4
5
6
8
9
shows the expected frequency values for the platform frequency when using a CCB clock to
Frequency Options
MPC8568E/MPC8567E PowerQUICC III™ Integrated Processor Hardware Specifications, Rev. 0
SYSCLK to Platform Frequency Options
Table 86. Frequency Options of SYSCLK with Respect to Memory Bus Speeds
16.66
333
Binary Value of
PA[0:4] Signals
0_1000
0_1001
0_1010
0_1011
0_1100
0_1101
0_1110
0_1111
Table 85. QE Clock Multiplier cfg_ce_pll[0:4] (continued)
400
500
25
33.33
333
400
533
cfg_ce_pll[0:4]
10
11
12
13
14
15
Platform /CCB clock Frequency (MHz)
8
9
41.66
333
375
417
500
66.66
SYSCLK (MHz)
333
400
533
Binary Value of
PA[0:4] Signals
1_1000
1_1001
1_1010
1_1011
1_1100
1_1101
1_1110
1_1111
333
415
500
83
100
400
500
cfg_ce_pll[0:4]
24
25
26
27
28
29
30
31
111
333
445
Freescale Semiconductor
133.33
400
533
166
333
500