IBM MOBILE COMBO ADAPTER PRO/100 SP - Manual (Page 35)

0 = Numeric (V0)
1 = Verbose (Vl) (Default)
Bit 6 Pulse dial PPS selection (&Pn)
0 = 10 PPS (&p0, &p1) (Default)
1 = 20 PPS (&p2)
Default: 8 (00001000b)
S21 V.24/General Bit Mapped Options Status
Indicates the status of command options. Only bits 3, 4, and 5 are used,
read-only.
Bits 3-4 DTR behavior (&Dn)
0 = &D0 selected
1 = &D1 selected
2 = &D2 selected (Default)
3 = &D3 selected
Bit 5 DCD behavior (&Cn)
0 = &C0 selected
1 = &C1 selected (Default)
Default: 48 (00110000b)
S22 Results Bit Mapped Options Status
Indicates the status of command options. Only bits 4, 5, and 6 are used,
read-only.
Bits 4-6 result codes (Xn)
0 = X0 selected
4 = X1 selected
Appendix B. Modem function B-9