Boot Time - Analog Devices ADAV4601 System Design Document

Message Byte:
Length:
Device Address:
Address:
Data :
Message Byte:

Boot Time

The EEPROM has 4 blocks which need to be copied to the part.
• SigmaDSP program 3072 x 6 bytes = 18432 bytes
• SigmaDSP parameters 1024 x 4 bytes = 4096 bytes
• Application layer instructions 640 x 5 bytes = 3200 bytes
• Application layer lookup table 6144 x 4 bytes = 24567 bytes
The time given to copy each block is given below:
#1: Sigma DSP Program
18432 bytes + 6 bytes to set address pointer = 18438 bytes
bits
t bytes * 9 *
=
1
bytes f
1
t 18438 * 9 *
=
1
390 KHz
t 425 . 49 mS
=
1
#2: SigmaDSP Parameter
4096 bytes + 6 bytes to set the address pointer = 4102 bytes
bits
t bytes * 9 *
=
1
bytes f
1
t 4102 * 9 *
=
1
390 KHz
t 94 . 66 mS
=
1
ADAV4601 System Design Document
Rev.1 August 2009
0x01: Block Message Followed by data
0x00: End of Data stream
Number of blocks to be read (addresses + data)
(For example above, Length would be 0009h)
Chip Address of ADAV4601
Target Memory address in ADAV4601
Data to be written
0x01: Block Message Followed by data
0x00: End of Data stream
1
I 2 C _ clk
1
I 2 C _ clk
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