Preliminary Information
MT9076
23.0 Transmit National Bit Buffer (Page 0EH)
Page 0EH, address 10H to 14H contain the five bytes of the transmit national bit buffer (TNBB0 - TNBB4
respectively). This feature is functional only when control bit NBTB (page 01H, address 17H) is one.
Bit
Name
Functional Description
7 - 0
TNBBn.F1 Transmit S
Bits Frames 1 to 15. This byte contains the bits transmitted in bit position
an+4
-
n+4 of channel zero of frames 1, 3, 5, 7, 9, 11, 13 and 15 when CRC-4 multiframe
TNBBn.F15 alignment is used, or of consecutive odd frames when CRC-4 multiframe alignment is not
used. n = 0 to 4 inclusive and corresponds to a byte of the receive national bit buffer.
Table 174 - Transmit National Bit Buffer Bytes Zero to Four (Page 0EH)
24.0 Receive National Bit Buffer (Page 0FH)
Page 0FH, addresses 10H to 14H contain the five bytes of the receive national bit buffer (RNBB0 - RNBB4
respectively).
Bit
Name
Functional Description
7 - 0 RNBBn.F1 Receive S
Bits Frames 1 to 15. This byte contains the bits received in bit position
an+4
n+4 of channel zero of frames 1, 3, 5, 7, 9, 11, 13 and 15 when CRC-4 multiframe
alignment is used, or of consecutive odd frames when CRC-4 multiframe alignment is
not used. n = 0 to 4 inclusive and corresponds to a byte of the receive national bit
buffer.
-
RNBBn.F15
Table 175 - Receive National Bit Buffer Bytes Zero to Four (Page 0FH)
137
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