PEF2054 SIEMENS [Siemens Semiconductor Group], PEF2054 Datasheet - Page 154

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

Downstream: CFI port 4, time slot 2, bits 7 … 0 from PCM port 1, time slot 3, bits 7 … 0
The following sequence sets transmit time slot 12 of PCM port 0 to low impedance:
Examples
In PCM mode 1 and CFI mode 3 the following connections shall be programmed:
Upstream: CFI port 5, time slot 7, bits 7 … 0 to PCM port 0, time slot 12, bits 7 … 0
Semiconductor Group
W:MADR = 1001 1000
W:MAAR
W:MACR = 0111 0001
W:MADR = 0000 0111
W:MAAR
W:MACR = 0111 0001
W:MADR =
W:MAAR
W:MACR =
= 1011 1011
= 0001 1000
= 1001 1011
0000 1111
0110 0000
B
B
B
B
B
B
B
B
B
; PCM time slot encoding according to figure 48
; CFI time slot encoding according to figure 48
; CM code for switching a 64 kbit/s channel
; PCM time slot encoding according to figure 48
; CFI time slot encoding according to figure 48
; CM code for switching a 64 kbit/s channel (0001)
; all bits to low Z
; PCM time slot encoding according to figure 48
; MOC code “1100” to access the tristate field
(code “0001”)
154
Application Hints
PEB 2055
PEF 2055