PEB2465 SIEMENS [Siemens Semiconductor Group], PEB2465 Datasheet - Page 31

• Manufacturer Part Number: PEB2465
• Description: Four Channel Codec Filter
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

3.4.2
Bit
TH-Sel
LM
LMR
LAW
LIN
PTG2
PTG1
1)
2)
Semiconductor Group
Explanation of the level metering function:
A signal fed to A/ -Law compression via AX- and HPX-filters (from a digital loop, or externally via
rectified, and the power is measured. If the power exceeds a certain value, loaded to XR4, bit LMR is set to
‘1’. The power of the incoming signal can be adjusted by AX-filters.
During Linear operation only one 16 bit voice channel, is available per timeslot. Depending on the address bit
(AD) the voice-data of channel 1 or 2 is transmitted. The other voice channel is not available during this time.
7
CR2 Configuration Register 2
2 bit field to select one of four programmed TH-filter coefficient sets
TH-Sel = 0 0: TH-filter coefficient set 1 is selected
TH-Sel = 0 1: TH-filter coefficient set 2 is selected
TH-Sel = 1 0: TH-filter coefficient set 3 is selected
TH-Sel = 1 1: TH-filter coefficient set 4 is selected
Level Metering function
LM = 0 :
LM = 1:
Result of Level Metering function (this bit can not be written)
LMR = 0:
LMR = 1:
PCM - law selection
LAW = 0:
LAW = 1:
Linear mode selection
LIN = 0:
LIN = 1:
User programmed frequency or fixed frequency is selected
PTG2 = 0:
PTG2 = 1:
User programmed frequency or fixed frequency is selected
PTG1 = 0:
PTG1 = 1:
TH-Sel
6
5
level metering function is disabled
level metering function is enabled
level detected was lower than the reference
level detected was higher than the reference
A-Law is selected
PCM-mode is selected
linear mode is selected
fixed frequency for tone generator 2 is selected (1 kHz)
programmed frequency for tone generator 2 is selected
fixed frequency for tone generator 1 is selected (1 kHz)
programmed frequency for tone generator 1 is selected
-Law ( 255 PCM) is selected
LM
1
4
1)
LMR
31
3
LAW
2)
2
Programming the SICOFI
LIN
1
PTG2
PEB 2465
0
PTG1
V
02.97
IN
®
), is
-4