33
CHAPTER 5: Commands
Register
Default
Function
S13
0 (zero)
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 (zero)
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, auto dial the
number stored in NVRAM at
position 0.
4
16
At power on/reset, Auto Dial
the number stored in
NVRAM at position 0.
5
32
Reserved.
6
64
Reserved.
7
128
Disconnect on escape code.
♦♦
The 1.5K-byte non-ARQ buffer allows data transfer with Xmodem- and Ymodem-
type file transfer protocols without using flow control.
The 128-byte option lets remote users with slower modems keep data you’re
sending from scrolling off their screens. When remote users send your computer
an XOFF (Ctrl-S) and you stop transmitting, the data in transit from your modem’s
buffer doesn’t exceed the size of their screen.
This is also very helpful in situations when a remote modem/printer application
is losing characters.
