NEC VERSA 2200C, Manual

Page: 87 / 91

C-8 Modem Commands, Registers, and Codes
S Registers
The modem provides S registers to let you control many of
its parameters. Some of these S registers are Read-Only
(RO) registers. Some are bit mapped. For bit-mapped S
registers, each option controlled by the register is assigned a
bit. The state of the bit determines whether the option is en-
abled. The value of the S register is then set by adding the
values of all bits representing enabled options.
S Register
REGISTER DEFAULT DESCRIPTION
S0 0 Auto-answer on number of rings.
S1 0 Ring count.
S2 43 Escape Character (+) (ASCII value
in decimal; disabled above 127)
S3 13 Carriage Return character code
(ASCII value in decimal).
S4 10 Line Feed character code (ASCII
value in decimal).
S5 08 Backspace character code (ASCII
value in decimal).
S6 02 Seconds to wait before dialing
without detecting dial tone.
S7 40 Seconds to wait for carrier after
dial.
S8 02 Seconds to pause for comma (,)
dial modifier.
S9 06 Tenths of seconds for Carrier Detect
(CD) response time
S10 14 Tenths of seconds to detect Carrier
loss time.
S11 75 DTMF tone and pause duration.
S12 40 Return to data mode timer.