TAS3218 Datasheet, PDF (53/79 Pages) Texas Instruments – DIGITAL AUDIO PROCESSOR WITH ANALOG INTERFACE

TAS3218
www.ti.com ....................................................................................................................................................................................................... SLES235 – JULY 2008
Table 12. DSP Coefficient RAM Block Structure
STARTING
BYTE
0
2
DATA BLOCK FORMAT
Checksum MSB
Checksum LSB
Header ID byte 1
Header ID byte 2
4
Memory to be loaded
5
0x00
Start memory address
MSB
6
Start memory address
LSB
Total number of byte
transferred MSB
8
Total number of byte
transferred LSB
10
0x00
11
0x00
Data byte 1 (LSB)
Data byte 2
12
Data byte 3
Data byte 4 (MSB)
Data byte 5 (LSB)
Data byte 6
16
Data byte 7
Data byte 8 (MSB)
SIZE
2 byte
2 byte
1 byte
1 byte
2 byte
2 byte
1 byte
1 byte
4 byte
4 byte
VALUE
NOTES
0x00
0x1F
0x03
0x00
Checksum of byte 2 through N + 12
Must be 0x001F
Micro program RAM or micro external
data RAM
Unused
If this is a termination header, this
value is 0000
Header (12) + data (N) + checksum (4)
0x00
0x00
Unused
Unused
Coefficient word 1 D7D0
D15D8
D23D16
D31D24
Coefficient word 2
N + 12
0x00
0x00
Checksum MSB
Checksum LSB
4 byte
Repeated checksum byte 2 through N
+11
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