MPC8241EC datasheet(39/58 Pages) FREESCALE

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MPC8241 Integrated Processor Hardware Specifications, Rev. 10

Freescale Semiconductor

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)

00000

Not available

25-265

75-78

188-195

3 (2)

2.5 (2)

00010

344–375

34–37

153–166

344–445

34–44

153–200

1 (4)

4.5 (2)

000116

507–663

50–66

100–132

507–663

50–66

100–132

1 (Bypass)

2 (4)

00100

25–415

50–82

100–164

25–448,10

50–88

100–176

2 (4)

001109

Bypass

Rev. B

001116

504–55 5

50–55

150–166

504–663

50–66

150–198

1 (Bypass)

3 (2)

Rev. D

00111

Not available

01000

504–555

50–55

150–166

504–663

50–66

150–198

1 (4)

3 (2)

01001

384–415,11

76–82

152–164

384–505,12

76–100

152–200

2 (2)

01011

Not available

445

198

2(2)

2.5(2)

01100

304–335

60–66

150–165

304–405

60–80

150–200

2 (4)

2.5 (2)

01110

25–275

50–54

150–162

25–335

60–66

150–198

2 (4)

3 (2)

10000

25–275,11

75–83

150–166

25–335,12

75–100

150–200

3 (2)

2 (2)

10010

504–555,11

75–83

150–166

504–663

75–99

150–198

1.5 (2)

2 (2)

10100

Not available

25–285

50–56

175–196

2 (4)

3.5 (2)

10110

255

200

2(4)

4(2)

10111

255

100

200

4(2)

2(2)

11001

335,13

165

3313–405

66–80

165–200

2(2)

2.5(2)

11010

374–415

37–41

150–166

374–505

37–50

150–200

1 (4)

4 (2)

11011

Not available

335,13

198

2(2)

3(2)

11100

445,13

198

1.5(2)

3(2)

11101

445,13

166

4413–535

66–80

165–200

1.5 (2)

2.5 (2)

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