Maxim Integrated DS21Q55 User Manual
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22.3.5 HDLC FIFOS
Register Name:
H1TF, H2TF
Register Description:
HDLC # 1 Transmit FIFO, HDLC # 2 Transmit FIFO
Register Address:
9Dh, Adh
Bit #
7
6
5
4
3
2
1
0
Name
THD7
THD6
THD5
THD4
THD3
THD2
THD1
THD0
Default
0
0
0
0
0
0
0
0
Bit 0/Transmit HDLC Data Bit 0 (THD0). LSB of a HDLC packet data byte.
Bit 1/Transmit HDLC Data Bit 1 (THD1).
Bit 2/Transmit HDLC Data Bit 2 (THD2).
Bit 3/Transmit HDLC Data Bit 3 (THD3).
Bit 4/Transmit HDLC Data Bit 4 (THD4).
Bit 5/Transmit HDLC Data Bit 5 (THD5).
Bit 6/Transmit HDLC Data Bit 6 (THD6).
Bit 7/Transmit HDLC Data Bit 7 (THD7). MSB of a HDLC packet data byte.
Register Name:
H1RF, H2RF
Register Description:
HDLC # 1 Receive FIFO, HDLC # 2 Receive FIFO
Register Address:
9Eh, Aeh
Bit #
7
6
5
4
3
2
1
0
Name
RHD7
RHD6
RHD5
RHD4
RHD3
RHD2
RHD1
RHD0
Default
0
0
0
0
0
0
0
0
Bit 0/Receive HDLC Data Bit 0 (RHD0). LSB of a HDLC packet data byte.
Bit 1/Receive HDLC Data Bit 1 (RHD1).
Bit 2/Receive HDLC Data Bit 2 (RHD2).
Bit 3/Receive HDLC Data Bit 3 (RHD3).
Bit 4/Receive HDLC Data Bit 4 (RHD4).
Bit 5/Receive HDLC Data Bit 5 (RHD5).
Bit 6/Receive HDLC Data Bit 6 (RHD6).
Bit 7/Receive HDLC Data Bit 7 (RHD7). MSB of a HDLC packet data byte.