MPC8378ECVRALDA datasheet(112/126 Pages) FREESCALE

номер детали	MPC8378ECVRALDA

подробное описание детали	PowerQUICC??II Pro Processor Hardware Specifications

PDF	126 Pages

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производитель	FREESCALE [Freescale Semiconductor, Inc]

домашняя страница	http://www.freescale.com

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MPC8378E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 2

112

Freescale Semiconductor

Clocking

22.3

Suggested PLL Configurations

Table 75 shows suggested PLL configurations for different input clocks (LBCM = 0).

0001

1.5:1

0001

1.5:1

0001

1.5:1

0010

02:1

0010

02:1

0010

02:1

0010

2.5:1

0010

2.5:1

0010

2.5:1

0011

03:1

0011

03:1

0011

03:1

0011

3.5:1

0011

3.5:1

0011

3.5:1

0100

04:1

0100

04:1

0100

04:1

Note:

1 Core VCO frequency = Core frequency × VCO divider. Note that VCO divider has to be

set properly so that the core VCO frequency is in the range of 800–1600 MHz.

Table 75. Example Clock Frequency Combinations

eLBC 1

e300 Core 1

Ref

LBCM DDRCM SVCOD SPMF

Sys

VCO

1,2 CSB

1,3 DDR data

rate

1,4

× 1 × 1.5 × 2 × 2.5 × 3

25.0

500

125

250

62.5

31.3

15.6

————

375

25.0

600

150

300

75 6

37.5

18.8

—

375

450

33.3

667

167

333

83.3 6

41.6

20.8

—

333

416

500

33.3

533

133

267

66.7

33.3

16.7

—

333

400

Table 74. e300 Core PLL Configuration (continued)

RCWL[COREPLL]

core_clk : csb_clk Ratio

VCO Divider 1

0–1

2–5

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