DS2154 Dallas Semiconducotr, DS2154 Datasheet - Page 59

• Manufacturer Part Number: DS2154
• Description: Enhanced E1 Single Chip Transceiver
• Manufacturer: Dallas Semiconducotr

TAF: TRANSMIT ALIGN FRAME REGISTER (Address=20 Hex)
[Must be programmed with the 7-bit FAS word; the DS2154 does not automatically set these bits]
TNAF: TRANSMIT NON-ALIGN FRAME REGISTER (Address=21 Hex)
[Bit 2 must be programmed to 1; the DS2154 does not automatically set this bit]
(MSB)
(MSB)
Si
Si
SYMBOL
SYMBOL
Sa4
Sa5
Sa6
Sa7
Sa8
Si
Si
A
0
0
1
1
0
1
1
1
0
1
POSITION
POSITION
TNAF.7
TNAF.6
TNAF.5
TNAF.4
TNAF.3
TNAF.2
TNAF.1
TNAF.0
TAF.7
TAF.6
TAF.5
TAF.4
TAF.3
TAF.2
TAF.1
TAF.0
A
0
NAME AND DESCRIPTION
International Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
NAME AND DESCRIPTION
International Bit.
Frame Non-Alignment Signal Bit.
Remote Alarm (used to transmit the alarm).
Additional Bit 4.
Additional Bit 5.
Additional Bit 6.
Additional Bit 7.
Additional Bit 8.
Sa4
1
59 of 87
Sa5
1
Sa6
0
Sa7
1
(LSB)
(LSB)
Sa8
DS2154
1