Maxim Integrated 73M2901CE AT Command - Manual (Page 15)

UG_2901CE_027 73M2901CE AT Command User Guide
Rev. 2.0 15
2.19 S[r] – Modify/Read S-registers
S[r]? Show S-register Value
The S[r]? command requests the modem to report the current value of register [r]. These registers are used
to set up various operating parameters of the modem as explained in Section 5. The value reported is in
decimal notation.
S[r]$ Show S-register Value in Hexadecimal
The S[r]$ command requests the modem to report the current value of register [r]. The value reported is in
hexadecimal notation.
S[r]???… Show Successive S-register Values
The S[r]???… command requests the modem to report the current value of [r] and successive registers.
The values are reported in decimal notation. The number of registers reported corresponds to the
number of ? (question marks) given to the modem. For an example: S10??? will report the values stored
in the registers S10, S11, and S12.
S[r]$$$… Show Successive S-register Values in Hexadecimal
The S[r]$$$… command requests the modem to report the current value of [r] and successive registers. The
values are reported in hexadecimal notation. The number of registers reported corresponds to the number
of $ (dollar signs) given to the modem. For an example: S10$$$ will report the values stored in the
registers S10, S11, S12.
S[r]=[n] Set S-Register Value
S[r]=[n] Set S-Register Value r = 0 to 104 n = 0 to 255
The S[r]=[n] command allows you to set (modify) the value of any of register [r] to new value [n]. The
value [n] is entered in decimal notation.
S[r]=n.$n.n.$n … Set S-register Values
The S[r]=n.$nn.n.$nn… command allows you to set (modify) the value of any of [r] and successive registers
to the new values n (decimal notation) or $n (hexadecimal notation). For an example: S10=$F0.128.$EC.25
will set register S10=F0 (hexadecimal) , S11=128 (decimal), S12=EC (hexadecimal), and S13=15 (decimal).
All hexadecimal values must be entered in as a two digit hex value. For example enter $0A instead of $A.
S[r]+[n] Set Bits in S-registers
The S[r]+[n] command sets bits in [r] S register by ORing the [n] value and the value currently in the
S-Register.
S[r]-[n] Clear Bits in S-registers
The S[r]-[n] command clears bits in [r] S register by ANDing the [not n] value and the value currently in the
S-Register.
2.20 T – Tone Dialing
Causes the modem to tone-dial until pulse dialing is selected.