Reset Configuration; Functional Description; Chip Identification Register (Cir); Cir Field Description - Motorola ColdFire MCF5281 User Manual

Functional Description

30.5.3.3 Chip Identification Register (CIR)

15
Field
Reset
R/W
Address
Bits
15–8
7–0
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 30-9 shows the states of the external pins while in reset.
30-8
PIN
0010_0000_0000_0000
Figure 30-4. Chip Identification Register (CIR)
Table 30-8. CIR Field Description
Name
PIN Part identification number. Contains a unique identification number for the device.
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.
MCF5282 User's Manual
8 7
R
IPSBAR + 0x11_000a
Description
0
PRN
MOTOROLA