dsp56167 Freescale Semiconductor, Inc, dsp56167 Datasheet - Page 92

• Manufacturer Part Number: dsp56167
• Description: Advance Information 16-bit Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

Design Considerations
Special Design Considerations for Conversions from DSP56166 to DSP56167
4-16
PASAM Register
Using PASAM
Figure 4-9 Programmable Absolute Short Addressing Mode Register (PASAM)
Note: The lower 5 bits of the PASAM register are reserved bits and should be
The changes affect the following instructions:
The register defined in Figure 4-9 has been added to the DSP56100 core to allow
implementation of this function.
To use this function, write the starting address of the selected block into the
Programmable Absolute Short Addressing Mode (PASAM) register to point to the
desired block or page. You can access the selected block at any time.
Figure 4-8 Programmable Absolute Short Addressing Mode Architecture
Where:
15 14 13 12 11 10
p
p
*
written with zeros for future compatibility. They are read as zeros whenever
PASAM is read.
p
move(s)
move(s)
bftst/bfset/bfchg/bfclr#iiii,X:<aa>
programmable bits; preset to 0 during processor reset
reserved bits; write 0 for future compatibility
p
p
GDB[15:0]
PASAM
p
X:<aa>,D
S,X:<aa>
DSP56167/D, Rev. 1
p
9
p
XAB1[15:0]
11
X:$FFCA
8
p
7
p
16
5
6
p
5
p
ALU
4
*
3
*
2
*
1
*
0
*
MOTOROLA