PEF2054 SIEMENS [Siemens Semiconductor Group], PEF2054 Datasheet - Page 211

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

W:MAAR
W:MACR
Downstream: CFI port 0, time slot 2, the value ‘0000 0111’ shall be transmitted:
W:MADR
W:MAAR
W:MACR
The next sequence will read the currently received value at DU1, TS7:
W:MAAR
W:MACR
wait for STAR:MAC = 0
R:MADR
Examples
In CFI mode 1 the following P channels shall be realized:
Upstream: CFI port 1, time slot 7:
W:MADR
Semiconductor Group
= 1111 1111
= 1000 1111
= 0111 1001
= 0000 0111
= 0000 0100
= 0111 1001
= 1000 1111
= 1100 1000
= value
B
B
B
B
B
B
B
B
= C8
H
; don’t care
; CFI time slot encoding according to figure 48
; CM code for a P channel (code ‘1001’)
; CFI idle value ‘0000 0111’
; CFI time slot encoding according to figure 48
; CM code for a P channel (code ‘1001’)
; upstream CFI port and time slot
; received CFI idle value
; read back command
211
Application Hints
PEB 2055
PEF 2055