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536EX Chipset Developer’s Manual 17
Intel Confidential
AT Command Summary Tables
&K0 Disables flow control
&K3 Bidirectional hardware flow control
&K4 XON/XOFF software flow control
* &Pn Dial pulse ratio 0 0, 1 yes
&P0
Sets 10 pps pulse dial with 39%/61% make-
break
&P1
Sets 10 pps pulse dial with 33%/67% make-
break
* &Sn DSR (data set ready) option 0 0, 1 yes
&S0 DSR is always active
&S1
DSR active only during handshaking and
when carrier is lost
&Tn Self test commands 0 0–1, 8 no
&T0 Terminates test in progress
&T1 Initiates local analog loopback
* &Un Disable Trellis coding 0 0, 1 no
&U0 Enables Trellis coding with QAM as fallback
&U1 QAM modulation only
&Vn View active and stored profiles 0 0, 1, 3 no
&V0 View active profile and stored profile 0
&V1 View active profile and stored profile 1
&Wn Stored active profile 0 0, 1 no
&W0 Store in user profile 0
&W1 Store in user profile 1
* &Yn Select stored profile on power up 0 0, 1 yes
&Y0 Recall stored profile 0 on power-up
&Y1 Recall stored profile 1 on power-up
&Zn=x
Store telephone number (up to 30 digits) to
location ‘n’ (0–3)
none
n = 0–3
x = 0–9 A B
C D # * T P
R W @ , ! ;
no
* %En Auto-retrain control 1 0, 1 yes
%E0 Disables auto-retrain
%E1 Enables auto-retrain
* %Gn Rate renegotiation 1 0, 1 yes
%G0 Disabled
%G1 Enabled
Table 5. Data Mode Command Summary (Continued)
Note Command Function Default Range
Reported
by &Vn
* Value saved in NVRAM.
** Command not preceded by an ‘AT.’