AMIS-49587 Datasheet, PDF (29/59 Pages) ON Semiconductor – Power Line Carrier Modem

AMIS−49587
Table 32. GENERAL DESCRIPTION OF WRITECONFIGNEW_REQUEST
Field
Length
Value
Description
FSK +
1 bit (b4)
0
Disables the improvement of FSK
1
Enables the improvement of FSK
Alarm Filter
1 bit (b3)
0
Enables the alarm filter
1
Disables the alarm filter
Synchro without Gain Min
1 bit (b2)
x
0 disabled
1 enabled
Repeater
2 bits
(b1,b0)
00
Never Repeater or Mode = Master
01
Always Repeater
10
Not Repeater (accept frame ISACall)
11
Repeater (accept frame ISACall)
Time−out−search−initiator
2 bytes
0 to FFFF
In seconds (Not used in Master and Monitor mode)
See Appendix C: SUMMARY of writeconfigNew_request for more details on the data for each mode.
TEST MODE
Description
The test mode is used to perform tests on the emission
level of the AMIS−49587 (for CENELEC for example –
never used on the field) and on the reception. Six different
modes are available:
1. Transmitting 1: the AMIS−49587 transmits the
frequency corresponding to the “1” bit value non
stop.
2. Transmitting 0: the AMIS−49587 transmits the
frequency corresponding to the “0” bit value non
stop.
3. Alternative transmission: the AMIS−49587
transmits alternatively the frequencies
corresponding to the “1” and “0” bit values.
4. Reception E0/E1 (= no transmission) : the
AMIS−49587 is placed in reception mode (but it is
not able to interpret what it receives) and it sends
on UART the envelop values.
5. Reception I0/Q0 (= no transmission) : the
AMIS−49587 is placed in reception mode (but it is
not able to interpret what it receives) and it sends
on UART the channel 0 values of I and Q.
6. Reception I1/Q1 (= no transmission) : the
AMIS−49587 is placed in reception mode (but it is
not able to interpret what it receives) and it sends
on UART the channel 1 values of I and Q.
TESTMODE_REQUEST (Tag 81h)
Description: The TestMode_Request command is used by
the base micro to ask a Transmitting Test to the
AMIS−49587. Then the AMIS−49587 is in Not Set mode
and its data are all initialized.
Remark: This means that the status will indicate that the
AMIS−49587 is not set, but it won’t accept
WriteConfig_Request and WriteConfigNew_Request
without a reset. Be careful with using this mode, since
nothing will indicate that the AMIS−49587 is in this mode.
The field DataTx contains the chosen mode
(transmitting1, transmitting 0, alternative transmission,
E0/E1 reception, I0/Q0 reception, or I1/Q1 reception) (1
byte), the frequencies (2 * 2 bytes) and the
MaxTransmisttingGain(1byte)
Table 33. TESTMODES
Mode
Transmitting Fs
Transmitting Fm
Alternative transmission of Fs and Fm
Reception I0/Q0
Reception I1/Q1
Reception E0/E1
Code
00
01
02
03
04
05
Syntax:
Initiator
Base Micro
Master/Slave/Monitor
Command (arguments)
TestMode_Request (DataTx)
Frame Format:
<STX>
Length
<TestMode_Request>
Possible Response
DataTx
CHK
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