Datasheet

MPC8241 Integrated Processor Hardware Specifications, Rev. 10
Freescale Semiconductor 39
PLL Configuration
6 PLL Configuration
The PLL_CFG[0:4] are configured by the internal PLLs. For a specific PCI_SYNC_IN (PCI bus)
frequency, the PLL configuration signals set both the peripheral logic/memory bus PLL (VCO) frequency
of operation for the PCI-to-memory frequency multiplying and the MPC603e CPU PLL (VCO) frequency
of operation for memory-to-CPU frequency multiplying. The PLL configurations are shown in Table 17
and Table 18.
Table 17. PLL Configurations (166- and 200-MHz)
Ref
2
PLL_CFG
[0:4]
1
166 MHz-Part
2
200-MHz Part
2
Multipliers
PCI Clock
Input
(PCI_
SYNC_IN)
Range
3
(MHz)
Peripheral
Logic/
Mem
Bus Clock
Range
(MHz)
CPU
Clock
Range
(MHz)
PCI Clock
Input
(PCI_
SYNC_IN)
Range
3
(MHz)
Peripheral
Logic/
Mem Bus
Clock
Range
(MHz)
CPU
Clock
Range
(MHz)
PCI-to-
Mem
(Mem VCO)
Mem-to-
CPU
(CPU VCO)
0 00000 Not available 25-26
5
75-78 188-195 3 (2) 2.5 (2)
2 00010 34
4
–37
5
34–37 153–166 34
4
–44
5
34–44 153–200 1 (4) 4.5 (2)
3 00011
6
50
7
–66
3
50–66 100–132 50
7
–66
3
50–66 100–132 1 (Bypass) 2 (4)
4 00100 25–41
5
50–82 100–164 25–44
8,10
50–88 100–176 2 (4) 2 (4)
6 00110
9
Bypass Bypass Bypass Bypass
7
Rev. B
00111
6
50
4
–55
5
50–55 150–166 50
4
–66
3
50–66 150–198 1 (Bypass) 3 (2)
7
Rev. D
00111 Not available
8 01000 50
4
–55
5
50–55 150–166 50
4
–66
3
50–66 150–198 1 (4) 3 (2)
9 01001 38
4
–41
5,11
76–82 152–164 38
4
–50
5,12
76–100 152–200 2 (2) 2 (2)
B 01011 Not available 44
5
66 198 2(2) 2.5(2)
C 01100 30
4
–33
5
60–66 150–165 30
4
–40
5
60–80 150–200 2 (4) 2.5 (2)
E 01110 25–27
5
50–54 150–162 25–33
5
60–66 150–198 2 (4) 3 (2)
10 10000 25–27
5,11
75–83 150–166 25–33
5,12
75–100 150–200 3 (2) 2 (2)
12 10010 50
4
–55
5,11
75–83 150–166 50
4
–66
3
75–99 150–198 1.5 (2) 2 (2)
14 10100 Not available 25–28
5
50–56 175–196 2 (4) 3.5 (2)
16 10110 25
5
50 200 2(4) 4(2)
17 10111 25
5
100 200 4(2) 2(2)
19 11001 33
5,13
66 165 33
13
–40
5
66–80 165–200 2(2) 2.5(2)
1A 11010 37
4
–41
5
37–41 150–166 37
4
–50
5
37–50 150–200 1 (4) 4 (2)
1B 11011 Not available 33
5,13
66 198 2(2) 3(2)
1C 11100 44
5,13
66 198 1.5(2) 3(2)
1D 11101 44
5,13
66 166 44
13
–53
5
66–80 165–200 1.5 (2) 2.5 (2)