MPC7445 datasheet(51/56 Pages) NXP

Part #	MPC7445

Description	RISC Microprocessor Hardware Specifications

PDF	56 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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MPC7447A RISC Microprocessor Hardware Specifications, Rev. 5

Freescale Semiconductor

System Design Information

9.8.5.3

Minimum Core Frequency Requirements with DFS

In many systems, enabling DFS can result in very low processor core frequencies. However, care must be

taken to ensure that the resulting processor core frequency is within the limits specified in Table 8. Proper

operation of the device is not guaranteed at core frequencies below the specified minimum fcore.

2.5x

5.5x

N/A

6.5x

N/A

3.5x

7.5x

N/A

8.5x

N/A

4.5x

9.5x

N/A

10x

10.5x

N/A

11x

5.5x

11.5x

N/A

12x

12.5x

N/A

13x

6.5x

13.5x

N/A

14x

15x

7.5x

16x

17x

8.5x

18x

20x

10x

21x

10.5x

24x

12x

28x

14x

Table 16. Valid Divide Ratio Configurations (continued)

Bus-to-Core Multiplier Configured

by PLL_CFG[0:4]

(see Table 13)

Bus-to-Core Multiplier with

HID1[DFS1] = 1

(

÷2)

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