3.0 Registers
CX28394/28395/28398
3.14 Bit-Oriented Protocol Registers
Quad/x16/Octal—T1/E1/J1 Framers
0A3—BOP Status (BOP_STAT)
Real-time status of the BOP transmitter and receiver is reported primarily for diagnostic purposes.
7
6
5
4
3
2
1
0
TBOP_ACTIVE
RBOP_ACTIVE
—
—
—
—
—
—
TBOP_ACTIVE
RBOP_ACTIVE
TBOP Active—Remains set for the entire length of a message as defined by TBOP_LEN[1:0]
[addr 0A0].
RBOP Active—Is set as soon as eight ones are detected and remains set if subsequent 1st and
8th bits are zero. For pattern length 1, RBOP_ACTIVE is a short pulse reported at the end of a
received 16-bit pattern. For longer lengths, the signal goes high at the end of the first pattern
and is held active until the desired number (or change) of patterns is detected. At this point
RBOP interrupt is generated. Consequently, this signal is usually high.
3-74
Conexant
100054E
CONEXANT [ CONEXANT SYSTEMS, INC ]
