SL900A-ASWB datasheet(39/90 Pages) AMSCO

39 / 90 page

ams Datasheet: 2014-May-06 [v1-01]

SL900A – 39

C u stom C o mm and Description

Open Area

The OPEN AREA command opens the specified area (System,

Application, and Measurement) that is protected by a password.

Command Structure:

Successful Reply Structure:

The “Password Level” field is composed as:

Access FIFO

The ACCESS FIFO command can read and write data from the

FIFO and can also read the FIFO status register.

Command Structure:

Successful Reply Structure:

SOF

Custom Command Code

Password Level

Password

Handle

CRC

Frame - sync

0xE0

0xAE

8 bits

32 bits

16 bits

SOF

Header

Handle

CRC

EOF

Pilot tone + preamble

1 bit [0]

16 bits

Dummy bit [1]

Password Level Bits

Passw. level

Bits b7 - b2 are X

Not allowed

System

Application

Measurement

SOF

Custom Command Code

Sub-command

Payload

Handle

CRC

Frame - sync

0xE0

0xAF

8 bits

0 ~ 8 bytes

16 bits

SOF

Header

Payload

Handle

CRC

EOF

Pilot tone + preamble

1 bit [0]

0 ~ 8 bytes (data from FIFO or

FIFO status register)

16 bits

Dummy bit [1]

SL900A-ASWB 데이터시트(PDF) 39 Page - ams AG

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