3Com PC Card manual S23

S Registers 37

S23

Bit-mapped. Storable.

Bit 0. Detect RDLB (&T4 and &T5 CMD)

■0 = Deny RDLB (&T5 CMD)

■1 = Accept RDLB (&T4 CMD)

Bit 3,2,1. DTE port communications speed (bits/s)

■0 = 300

■4 = 4800

■1 = 57600

■5 = 9600

■2 = 1200

■6 = 19200

■3 = 2400

■7 = 38400

Note: bits 3,2 and 1 of S23 are only valid if bits 3,2 & 1 of S19 = 0.

Bit 5,4. Parity

■0 = Even

■2 = Odd

■1 = Space / none

■3 = Mark

Bit 7,6. Guard Tone (&G CMD)

■0 = None

■2 = 1800 Hz

■1 = 550 Hz

■3 = Not used