AS39513 datasheet(82/108 Pages) AMSCO

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[v1-10] 2018-Apr-25

AS39513 − Detailed Description

Read System Block Command

Read System Block Command Request:

Read System Block Command Reply:

The read system block command reads four bytes from the

EEPROM and register System areas. The starting byte address

to read is 0x400 + 4*BADDR. If the OPTION flag is 1, a security

status is returned. If the OPTION flag is 0, no security status is

returned. In either case, the four bytes in the block are returned,

lowest address and LSB first.

The security status will always be 0x00 because the System and

Factory areas do not have lock bits.

If the block address BADDR corresponds to a Factory access

area, the error code 0x10 (specified block not available) will be

returned instead of the block data.

SOF

Flags

Command

IC Mfg.

UID

BADDR

CRC

EOF

NFLAGS

0xA2

0x36

64 bits

8 bits

16 bits

SOF

Flags

Security Status

Block Data

CRC

EOF

RFLAGS

8 bits

4*8 bits

16 bits

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