TAS3202 datasheet(28/69 Pages) TI2

28 / 69 page

TAS3202

SLES208B – JUNE 2009 – REVISED MARCH 2011

www.ti.com

Table 6-6. TAS3202 Memory Block Structures

STARTING

DATA BLOCK FORMAT

SIZE

NOTES

BYTE

12-Byte Header Block

Checksum code MS byte

Checksum of bytes 2 through N + 12.

2 bytes

If this is a termination header, this value is 00 00

Checksum code LS byte

Header ID byte 1 = 0x00

Must be 0x001F for the TAS3202 to load as part of

2 bytes

initialization. Any other value terminates the initialization

Header ID byte 2 = 0x1F

memory load sequence.

0x00 – Microprocessor program memory or termination

header

0x01 – Microprocessor external data memory

0x02 – Audio DSP core program memory

Memory to be loaded

1 byte

0x03 – Audio DSP core coefficient memory

0x04 – Audio DSP core data memory

0x05–06 – Audio DSP upper program memory

0x07 – Audio DSP upper coefficient memory

0x08–FF – Reserved for future expansion

0x00

1 byte

Unused

Start TAS3202 memory address MS byte

2 bytes

If this is a termination header, this value is 0000.

Start TAS3202 memory address LS byte

Total number of bytes transferred MS byte

12 + data bytes + last checksum bytes. If this is a

2 bytes

termination header, this value is 0000.

Total number of bytes transferred LS byte

0x00

1 bytes

Unused

0x00

1 bytes

Unused

Data Block for Microprocessor Program or Data Memory (Following 12-Byte Header)

Data byte 1 (LS byte)

Data byte 2

4 bytes

1–4 microprocessor bytes

Data byte 3

Data byte 4 (MS byte)

Data byte 5

Data byte 6

4 bytes

5–8 microprocessor bytes

Data byte 7

Data byte 8

•

Data byte 4×(Z – 1) + 1

Data byte 4×(Z – 1) + 2

N + 8

4 bytes

Data byte 4×(Z – 1) + 3

Data byte 4×(Z – 1) + 4 = N

0x00

N + 12

4 bytes

Repeated checksum bytes 2 through N + 11

Checksum code MS byte

Checksum code LS byte

Microprocessor Controller

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