CX28394/28395/28398
3.0 Registers
Quad/x16/Octal—T1/E1/J1 Framers
3.14 Bit-Oriented Protocol Registers
0A1—Transmit BOP Codeword (TBOP)
7
6
5
4
3
2
1
0
—
—
TBOP[5]
TBOP[4]
TBOP[3]
TBOP[2]
TBOP[1]
TBOP[0]
TBOP[5]
6th bit transmitted
5th bit transmitted
4th bit transmitted
3rd bit transmitted
2nd bit transmitted
TBOP[4]
TBOP[3]
TBOP[2]
TBOP[1]
TBOP[0]
Transmit BOP codeword, 1st bit transmitted
0A2—Receive BOP Codeword (RBOP)
7
6
5
4
3
2
1
0
RBOP_LOST
RBOP_VALID
RBOP[5]
RBOP[4]
RBOP[3]
RBOP[2]
RBOP[1]
RBOP[0]
RBOP_LOST
RBOP_VALID
Previous Message Overwritten—Activated when RBOP is updated and RBOP_VALID is
already set, indicating that the previous codeword was never read by the processor.
0 = no error
1 = prior codeword lost
RBOP Message Valid—Set each time RBOP[5:0] is updated with a codeword value. Reading
from RBOP clears RBOP_VALID.
0 = no message or message read
1 = new RBOP message received
RBOP[5]
RBOP[4]
RBOP[3]
RBOP[2]
RBOP[1]
RBOP[0]
6th bit received
5th bit received
4th bit received
3rd bit received
2nd bit received
Receive BOP codeword, 1st bit received
100054E
Conexant
3-73
CONEXANT [ CONEXANT SYSTEMS, INC ]
