T1tfdl, Registe, It will be multiplexed serially (lsb fi – Rainbow Electronics DS26519 User Manual
Page 220: Ate the, If the, Regi, Tdds1, Tdds2, Tdds3
DS26519 16-Port T1/E1/J1 Transceiver
220 of 310
Register Name:
TDDS1, TDDS2, TDDS3
Register Description:
Transmit DDS Zero Code Registers 1 to 3
Register Address:
108h, 109h, 10Ah + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
(MSB)
(LSB)
Bit
# 7 6 5 4 3 2 1 0
Name CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1
TDDS1
CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9
TDDS2
CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17
TDDS3
The Transmit DDS Zero Code Registers (TDDS1–3) select which of the 24 T1 channels to insert DDS zero code
stuffing. These registers are enabled by
Bits 7 to 0: Transmit Channels 1 to 24 DDS Zero Code Control Bits (CH[1:32])
0 = Do not affect data in this channel.
1 = Replace the channel with DDS Zero Code stuffing if the channel is all zeros.
Register Name:
TFRID
Register Description:
Transmit Firmware Revision ID Register
Register Address:
161h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name FR7 FR6 FR5 FR4 FR3 FR2 FR1 FR0
Default
0 0 0 0 0 0 0 0
Bits 7 to 0: Firmware Revision (FR[7:0]). This read-only register reports the transmitter firmware revision.
Register Name:
T1TFDL
Register Description:
Transmit FDL Register
Register Address:
162h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name TFDL7 TFDL6 TFDL5 TFDL4 TFDL3 TFDL2 TFDL1 TFDL0
Default
0 0 0 0 0 0 0 0
Note: Also used to insert Fs framing pattern in D4 framing mode.
The Transmit FDL Register (T1TFDL) contains the Facility Data Link (FDL) information that is to be inserted on a
byte basis into the outgoing T1 data stream. The LSB is transmitted first. In D4 mode, only the lower six bits are
used.
Bit 7: Transmit FDL Bit 7 (TFDL7). MSB of the Transmit FDL Code.
Bit 6: Transmit FDL Bit 6 (TFDL6)
Bit 5: Transmit FDL Bit 5 (TFDL5)
Bit 4: Transmit FDL Bit 4 (TFDL4)
Bit 3: Transmit FDL Bit 3 (TFDL3)
Bit 2: Transmit FDL Bit 2 (TFDL2)
Bit 1: Transmit FDL Bit 1 (TFDL1)
Bit 0: Transmit FDL Bit 0 (TFDL0). LSB of the Transmit FDL Code.