T
ECHNICAL
R
EFERENCE
S Registers
Note:
To change a setting use
ATSr
=
n
, where
r
is the register and
n
is a decimal value from 0
−
255 (unless otherwise indicated).
Register Default
Function
8-14
S13
0
Bit-mapped register. Select the bit(s) you want on and set S13 to the total of the values in the Value column. For example,
ATS13 = 17 enables bit 0 (value is 1) and bit 4 (value is 16).
Bit
Value
Result
0
1
Reset when DTR drops.
1
2
Reset non-MNP transmit buffer from 1.5K to 128 bytes.*
2
4
Set backspace key to delete.
3
8
On DTR signal, autodial the number stored in NVRAM at position 0.
4
16
At power on/reset, autodial the number stored in NVRAM at position 0.
5
32
Reserved
6
64
Disable quick retrains.
7
128
Disconnect on escape code.
* The 1.5K-byte non-MNP buffer allows data transfer via XModem and YModem file transfer protocols without flow control. The 128-byte option lets remote
users with slower modems keep data from scrolling off their screens. When remote users send an XOFF (Ctrl-S) and you stop transmitting, the data in transit
from your modem’s buffer won’t exceed the size of their screen or overflow their modem or printer buffers.
S14
0
Reserved
S15
0
Bit-mapped register setup. To set the register, see instructions for S13.
Bit
Value
Result
0
1
Disable ARQ/MNP for V.22.
1
2
Disable ARQ/MNP for V.22bis.
2
4 Disable ARQ/MNP V.32/V.32bis.
3
8
Disable MNP handshake.
4
16
Disable MNP level 4.
5
32
Disable MNP level 3.
6
64
MNP incompatibility.
7
128
Disable V.42 operation.
Summary of Contents for 3CP5613
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