PEB24901HV1.2 Lantiq, PEB24901HV1.2 Datasheet - Page 26

• Manufacturer Part Number: PEB24901HV1.2
• Manufacturer: Lantiq

Specifications of PEB24901HV1.2

• Lead Free Status / Rohs Status: Supplier Unconfirmed

13 bits long used for data transmission. The status on SDR is synchronised to SDX.
Each time slot on SDR carries the corresponding LD bit during the last 12 bits of the slot.
Figure 9
Frame Structure on SDX and SDR
The following data is transmitted on SDX from the DFE-T to the AFE :
NOPQ:
PDOW:
RANGE: RANGE = ONE activates the range function of the Quad IEC AFE, otherwise
LOOP:
SY:
"0":
The following data is transmitted on SDR from the AFE to the DFE-T:
Semiconductor Group
SDX
SDR
SY=1
0
0
0
The no-operation-bit is set to ZERO if none of the control bits (PDOW,
RANGE and LOOP) shall be changed. The control bits on SDX then are set
to ZERO to reduce digital cross-talk to the analog signals. The values of the
control bits of the assigned line port are latched by the Quad IEC AFE.
The NOPQ bit is set to ONE if at least one of the control bits shall be changed.
In this case all control bits are transmitted with their current values.
If the PDOW bit is set to ONE, the assigned line port is switched to power
down. Otherwise it is switched to power up.
the range function is deactivated. "Range function activated" refers to high
input levels as they occur at short loop lengths.
LOOP = ONE activates the loop function of the Quad IEC AFE, i.e. the analog
loop is closed. Otherwise the line port of the Quad IEC AFE is in normal
operation.
First bit of the time slots with transmission data. For synchronisation and bit
allocation on SDX,SY is set to ONE on SDX and set to ZERO on SDR.
reserved bit. Reserved bits are currently not defined and set to ZERO. Some
of these bits may be used for test purposes or can be assigned a function in
later versions.
Slot 0
13 bit
TD1
LD
1
TD0
13
2
Slot 1
13 bit
NOPQ PDOW LOOP RANGE
3
26
4
Slot 2
13 bit
5
39
6
13 bit
Slot 3
"0"
7
"0"
52
8
25
Slot 4
13 bit
"0"
9
10
"0"
65
Slot 5
13 bit
11
"0"
12
"0"
78
Slot 6
13 bit
91
Slot 7
13 bit
PEB 24901
102
Synch. word
24 bit
127
02.95