PEF2054 SIEMENS [Siemens Semiconductor Group], PEF2054 Datasheet - Page 153

• Manufacturer Part Number: PEF2054
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Disabling the PCM Output Driver
Programming of a 64 kbit/s CFI - PCM Time Slot Connection
– in case the CM code field has not yet been initialized with a switching code:
– in case the CM code field has already been initialized with a switching code:
Enabling the PCM Output Driver for a 64 kbit/s Time Slot
Reading Back a Time Slot Assignment of a Given CFI Time Slot
– reading back the PCM time slot involved:
– reading back the involved bandwidth and PCM subtime slot position:
Cancelling of a Programmed CFI - PCM Time Slot Connection
Semiconductor Group
W:MADR = PCM port and time slot encoded according to figure 48
W:MAAR
W:MACR = 0111 0001
W:MADR = PCM port and time slot encoded according to figure 48
W:MAAR
W:MACR = 0100 1000
W:MADR = XXXX 1111
W:MAAR
W:MACR = 0110 0000
W:MAAR
W:MACR = 1100 1000
wait for STAR:MAC = 0
R:MADR
W:MAAR
W:MACR = 1111 0000
wait for STAR:MAC = 0
R:MADR
W:MADR = don’t care
W:MAAR
W:MACR = 0111 0000
W:MADR = XXXX 0000
W:MAAR
W:MACR = 0110 0000
= CFI port and time slot encoded according to figure 48
= CFI port and time slot encoded according to figure 48
= PCM port and time slot encoded according to figure 48
= CFI port and time slot encoded according to figure 48
= PCM port and time slot encoded according to figure 48
= CFI port and time slot encoded according to figure 48
= XXXX code; 4 bit bandwidth code encoded according to table 24
= CFI port and time slot encoded according to figure 48
= PCM port and time slot encoded according to figure 48
B
B
B
B
B
B
B
B
B
= 71
= 48
= 60
= C8
= F0
= 70
= 60
= XF
= X0
H
H
H
H
H
H
H
H
H
; code “0000” (unassigned channel)
153
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