Motorola MCF5282, MCF5281 Reset Configuration, Chip Identification Register CIR, Pin Prn

Models: MCF5282 MCF5281

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Functional Description

30.5.3.3Chip Identification Register (CIR)

Field

Reset

R/W Address

15

8

7

0

 

PIN

 

PRN

 

 

 

 

0010_0000_0000_0000

R

IPSBAR + 0x11_000a

Figure 30-4. Chip Identification Register (CIR)

Table 30-8. CIR Field Description

Bits

Name

Description

 

 

 

15–8

PIN

Part identification number. Contains a unique identification number for the device.

 

 

 

7–0

PRN

Part revision number. This number is increased by one for each new full-layer mask

 

 

set of this part. The revision numbers are assigned in chronological order.

 

 

 

30.6 Functional Description

Six functions are defined within the chip configuration module:

1.Reset configuration

2.Chip mode selection

3.Boot device selection

4.Output pad strength configuration

5.Clock mode selections

6.Chip select configuration

These functions are described here.

30.6.1 Reset Configuration

During reset, the pins for the reset override functions are immediately configured to known states. Table 30-9shows the states of the external pins while in reset.

30-8

MCF5282 User’s Manual

MOTOROLA

Page 726
Image 726
Motorola MCF5282, MCF5281 user manual Reset Configuration, Chip Identification Register CIR, Pin Prn