MT9075B Datasheet, PDF (52/102 Pages) Mitel Networks Corporation – E1 Single Chip Transceiver

MT9075B
Data Sheet
Bit
Name
Functional Description
7-3
--
Unused.
2
LOS/LOF
Loss of Signal or Loss of Frame Selection. If one, pin LOS (pin 61 in
(0)
PLCC, 57 in MQFP) will go high when a loss of signal state exits (criteria as
per LLOS status bit on page 03H address 18H). If low, pin LOS will go high
when either a loss of signal (LLOST =1) or a loss of basic frame alignment
state exits (bit SYNC on page 03H address 10H is zero).
1
ADSEQ
Digital Milliwatt or Digital Test Sequence. If one, the A-law digital milliwatt
(0)
analog test sequence will be selected by the Per Time Slot Control bits
TTST and RTST (on page 07H and 08H). If zero, the PRBS 2¹⁵-1 bit error
rate test sequence will be selected by the Per Time Slot Control bits TTST
and RTST. The PRBS generator is reset whenever this bit is set to 1.
0
GCI/ST
GCI or ST-BUS Frame Pulse. If one, the MT9075B will transmit or receive
(0)
a GCI frame pulse on pin F0b (pin 46 in PLCC, 34 in MQFP). If zero, the
MT9075B will transmit or receive an ST-BUS frame pulse on F0b.
Table 29 - Access Control Word
(Page 02H, Address 13H)
52
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