T9000
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
26 Register Set Summary (continued)
Table 134. Register Set Summary HDLC Registers
Reg
R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x18, HDLC Transmitter Configuration Register
HTCF
R/W
FCNT2
0
FCNT1
0
FCNT0
0
IDL
1
TXMODE ABRT_RQ MANCRC TX_INIT
RESET Default
0
0
0
0
0x19, HDLC Receiver Configuration Register
HRCF
R/W
—
0
—
0
—
0
—
0
RXMODE
—
BAE
0
DROPCRC RX_INIT
RESET Default
1
0
0x1A, HDLC Transmit FIFO Threshold
HTTH
R/W
P_CLASS
1
—
0
TFAE5
1
TFAE4
0
TFAE3
0
TFAE2
0
TFAE1
0
TFAE0
0
RESET Default
0x1B, HDLC Receive FIFO Threshold
HRTH
R/W
—
0
—
0
RFAF5
1
RFAF4
0
RFAF3
0
RFAF2
0
RFAF1
0
RFAF0
0
RESET Default
0x1C, HDLC Transmit FIFO Space Available
HTSA
R
—
—
TSP6
1
TSP5
0
TSP4
0
TSP3
0
TSP2
0
TSP1
0
TSP0
0
RESET Default
0x1D, HDLC Receive FIFO Data Available
NBNSW6 NBNSW5 NBNSW4 NBNSW3 NBNSW2 NBNSW1 NBNSW0
HRDA
R
SWRF
—
RESET Default
—
—
—
—
—
—
—
0x1E, HDLC Transmit Data
HTX
W
TXD7
—
TXD6
—
TXD5
—
TXD4
—
TXD3
—
TXD2
—
TXD1
—
TXD0
—
RESET Default
0x1F, HDLC Transmit Data Last Byte
HTXL
W
TXDL7
—
TXDL6
—
TXDL5
—
TXDL4
—
TXDL3
—
TXDL2
—
TXDL1
—
TXDL0
—
RESET Default
0x20, HDLC Receive Data
HRX
R
RXD7
—
RXD6
—
RXD5
—
RXD4
—
RXD3
—
RXD2
—
RXD1
—
RXD0
—
RESET Default
0x21, HDLC SAPI C/R Bit Mask Register
HSCR
R/W
—
0
—
0
—
0
—
0
S3CRE
0
S2CRE
0
S1CRE
0
S0CRE
0
RESET Default
0x22, HDLC SAPI Match Pattern 0
HSM0
R/W
SAPI05
BAP7
—
SAPI04
BAP6
—
SAPI03
BAP5
—
SAPI02
BAP4
—
SAPI01
BAP3
—
SAPI00
BAP2
—
C/R0
BAP1
—
EA00
BAP0
—
RESET Default
Lucent Technologies Inc.
121
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