Analog Devices ADAV4601

ADAV4601 System Design Document Confidential Information
Rev.1 August 2009 Analog Devices Page 38
Message Byte: 0x01: Block Message Followed by data
0x00: End of Data stream
Length: Number of blocks to be read (addresses + data)
(For example above, Length would be 0009h)
Device Address: Chip Address of ADAV4601
Address: Target Memory address in ADAV4601
Data : Data to be written
Message Byte: 0x01: Block Message Followed by data
0x00: End of Data stream
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
clkCI
fbytes
bits
bytest
_2
1
1
*9*=
KHz
t
390
1
*9*18438
1
=
mSt 49.425
1
=
#2: SigmaDSP Parameter
4096 bytes + 6 bytes to set the address pointer = 4102 bytes
clkCI
fbytes
bits
bytest
_2
1
1
*9*=
KHz
t
390
1
*9*4102
1
=
mSt 66.94
1
=