PEB2466 SIEMENS [Siemens Semiconductor Group], PEB2466 Datasheet - Page 36

• Manufacturer Part Number: PEB2466
• Description: Four Channel Codec Filter with PCM- and m-Controller Interface SICOFI4-mC
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
3.3.4
Test-Loops 4 bit field for selection of Analog and Digital Loop Backs
AGX
AGR
D-HPX
D-HPR
1)
2)
Bit 7
In this case the transmit-path signal is attenuated 0.06 dB
In this case the receive-path signal is attenuated 0.12 dB
CR3 Configuration Register 3
0 0 0 0:
0 0 0 1:
0 0 1 1:
0 1 0 0:
0 1 0 1:
1 0 0 0:
1 0 0 1:
1 1 0 0:
1 1 0 1:
1 1 1 1:
Analog gain in transmit direction
AGX = 0:
AGX = 1:
Analog gain in receive direction
AGR = 0:
AGR = 1:
Disable highpass in transmit direction
D-HPX = 0: Transmit high pass is enabled
D-HPX = 1: Transmit high pass is disabled
Disable highpass in receive direction
D-HPR = 0: Receive high pass is enabled
D-HPR = 1: Receive high pass is disabled
Test-Loops
ALB-4M
DLB-ANA
DLB-4M
DLB-128K
DLB-64K
DLB-PCM
Analog gain is disabled
Analog gain is enabled (6.02 dB amplification)
Analog gain is enabled (6.02 dB attenuation)
ALB-PFI
ALB-PCM
ALB-8K
Analog gain is disabled
No loop back is selected (normal operation)
Analog loop back via PREFI-POFI is selected
Analog loop back via 4 MHz is selected
Analog loop back via 8 kHz (PCM) is selected
(attention: special settings necessary)
Analog loop back via 8 kHz (linear) is selected
Digital loop back via analog port is selected
Digital loop back via 4 MHz is selected
Digital loop back via 128 kHz is selected
Digital loop back via 64 kHz is selected
Digital loop back via PCM-registers is selected
36
AGX
Programming the SICOFI
2)
1)
AGR
D-HPX
PEB 2466
0
D-HPR
®
-4- C
02.97