Datasheet

DS26514 4-Port T1/E1/J1 Transceiver
19-5856; Rev 4; 5/11 154 of 305
Register Name:
T1RBOC (T1 Mode)
Register Description:
Receive BOC Register
Register Address:
63h + (200h x (n - 1)) : where n = 1 to 4
Bit #
7
6
5
4
3
2
1
0
Name
—
—
RBOC5
RBOC4
RBOC3
RBOC2
RBOC1
RBOC0
Default
0
0
0
0
0
0
0
0
Bit 5: BOC Bit 5 (RBOC5)
Bit 4: BOC Bit 4 (RBOC4)
Bit 3: BOC Bit 3 (RBOC3)
Bit 2: BOC Bit 2 (RBOC2)
Bit 1: BOC Bit 1 (RBOC1)
Bit 0: BOC Bit 0 (RBOC0)
The T1RBOC register always contains the last valid BOC received. The Receive FDL Register (
T1RFDL) reports
the incoming Facility Data Link (FDL) or the incoming Fs bits. The LSB is received first. In D4 framing mode, RFDL
updates on multiframe boundaries and reports the six Fs bits in RFDL[5:0].