PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 90

• Manufacturer Part Number: PEF 20954 HT V1.1
• Description: IC ECHO CANCELLER DGTL TQFP144
• Manufacturer: Infineon Technologies

Specifications of PEF 20954 HT V1.1

• Function: Smart Integrated Digital Echo Canceller (SIDEC)
• Interface: PCM, Serial, UCC
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 350mA
• Power (watts): 900mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 144-LFQFP
• Includes: Double Talk Detection
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: PEF20954HTV1.1; SP000007505

SCMASK[5:0] (Addr.: 6BH): Serial Control Interface Mask, write protected,
Reset value = 3FH
This register is for masking of external pins of the Serial Interface. The effect of this
register depends also on the value of CHCTRL0..31.ENPCTRL.
DISMASK
NLPDISMASK
FREEZEMASK
CONVDISMASK
ENCCMASK
FLEXSCTRMASK '1': serial control signal at pin FLEXSCTR disabled
CONFFLEXSCTR[5:0] (Addr.: 6CH): Configuration of the flexible serial control signal,
write protected, Reset value = 00H
This
SCMASK.FLEXSCTRMASK = '0'
FSBYPASS
FSNLPDIS
FSFREEZE
FSSCURESET
Data Sheet
-
-
register
-
-
determines
'1': serial control signal at pin FLEXSCTR leads to bypassing of the
'1': serial control signal at pin FLEXSCTR resets the attenuation
'1': serial control signal at pin DIS disabled
'0': serial control signal at pin DIS enabled
'1': serial control signal at pin NLPDIS disabled
'0': serial control signal at pin NLPDIS enabled
'1': serial control signal at pin FREEZE disabled
'0': serial control signal at pin FREEZE enabled
'1': serial control signal at pin CONVDIS disabled
'0': serial control signal at pin CONVDIS enabled
'1': serial control signal at pin ENCC disabled
'0': serial control signal at pin ENCC enabled
'0': serial control signal at pin FLEXSCTR enabled
'0': No bypass of the entire compensator by FLEXSCTR
'1': serial control signal at pin FLEXSCTR disables the NLP and
'0': No disabling of the NLP and attenuator by FLEXSCTR
'1': serial control signal at pin FLEXSCTR freezes the H-Register
'0': No freeze of the H-Register by FLEXSCTR
BYPASS
PCM signal of the entire cancelling path (canceller ,NLP,
attenuator and bypassing of the attenuator in the receive path)
attenuator
meters in the speech control unit
MASK
DIS
FS
the
NLPDIS
NLPDIS
MASK
FS
function
90
FREEZE
FREEZE
MASK
FS
of
RESET
CONV
MASK
SCU
pin
DIS
FS
FLEXSCTR
Register Description
HRESET
ENCC
MASK
FS
Rev. 2, 2004-07-28
PEB 20954
PEF 20954
MASK
CONV
SCTR
FLEX
DIS
if
FS
bit