Core Configuration
AA Control Registers (AAR0ÐAAR3)
revision number of the device. This information can be used in testing or by software.
shows the contents of the IDR.
Revision numbers are assigned as follows: $0 is revision 0, $1 is revision A, and so on.
Because the DSP56309 is based on the DSP56302, its identification number is based on
the derivative number and revision number of that device.
23
16
15
12
11
0
Reserved
Revision Number
Derivative Number
$00
$2
$302
Figure 4-5 Identification Register Configuration (Revision 0)
4.9
AA CONTROL REGISTERS (AAR0ÐAAR3)
The address attribute register (AAR) appears in Figure 4-6. There are four of these
registers in the DSP56309 (AAR0ÐAAR3), one for each AA signal.
For a full description of the address attribute registers see the DSP56300
.
Family Manual
Address multiplexing is not supported by the DSP56309. Bit 6 (BAM) of the AARs is
reserved and should have only 0 written to it.
MOTOROLA
DSP56309UM/D
4-19