AMIS49587C5871RG ON Semiconductor, AMIS49587C5871RG Datasheet - Page 31

• Manufacturer Part Number: AMIS49587C5871RG
• Description: IC MODEM PLC 50/60MHZ 28PLCC
• Manufacturer: ON Semiconductor

Specifications of AMIS49587C5871RG

• Baud Rates: Selectable
• Interface: SCI
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Number Of Transmitters: 1
• Power Supply Requirement: Single
• Package Type: PLCC
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 28
• Operating Temperature (max): 70C
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Lead Free Status / Rohs Status: Compliant

Desynchro_Request (Tag 11h)
Description: The Desynchro_Request command is used by the base micro to enforce the not synchronized state in the
AMIS−49587 and therefore it starts looking for a new synchronization.
Reset_Request (Tag 21h)
Description: The Reset_Request command is used by the base micro to ask a reset to the AMIS−49587. Then the AMIS−49587
is in Not Set mode and its data are all initialized. This command has no data. The base micro can send this command at anytime.
SCENARIO OF STARTING AFTER RESET
This scenario is achieved at the starting time and after a Reset_Request command.
DESCRIPTION
The communication between the AMIS−49587 and the base micro is performed through the asynchronous serial interface
(UART) by using the WriteDB_Request, the WriteDB_Confirm and the WriteDB_Error commands.
THE COMMANDS AVAILABLE
WriteDB_Request (Tag 41h)
Description: The WriteDB_Request is sent by the base micro in order to write one data in the AMIS−49587 data base. The
field DB_Data_Id is coded on several bytes in Hex and is structured as follow:
− 2 bytes for the Identifier field (Ident) that indicates which data has to be modified (transmitted LSByte first).
− 0 to 20 bytes for the data depending on the Identifier field.
Syntax:
Syntax:
These commands allow the access to variables in the Data Base which is constituted by a MIB array and a local data array.
Base Micro
Initiator
Base Micro
Initiator
T_REQ
TxD
RxD
Frame Format:
Frame Format:
<STX>
<STX>
Master/Slave/Monitor
Command (arguments)
Desynchro_Request ()
Status Massage
Master/Slave/Monitor
Command (arguments)
Length
Length
Reset_Request ()
Figure 20. Scenario of starting
WriteConfig _Req
http://onsemi.com
DATABASE
<Desynchro_Request>
<Reset_Request>
31
ACK
WriteConfig _Conf
Possible Response
Possible Response
CHK
CHK
ACK