Maxim DS21Q55 specifications 22.3.5, H1TF, H2TF, H1RF, H2RF

Models: DS21Q55

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DS21Q55

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). 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).

LSB of a HDLC packet data byte.

MSB of a HDLC packet data byte.

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information.

Page 145
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Maxim DS21Q55 specifications 22.3.5, H1TF, H2TF, H1RF, H2RF