peb20954 Infineon Technologies Corporation, peb20954 Datasheet - Page 21

• Manufacturer Part Number: peb20954
• Description: Smart Integrated Digital Echo Canceller Sidec
• Manufacturer: Infineon Technologies Corporation

Table 9
Preliminary Data Sheet
Pin No. Symbol
12
11
10
9
8
7
24
23
22
21
DIS
NLPDIS
FREEZE
CONVDIS
ENCC
FLEXSCTR
DISMON
NLPDISMON
FREEZEMON O
HRESMON
Channelwise Serial Interface
I/O, PU/PD
O
I, PD
I, PD
I, PD
I, PD
I, PD
I, PD
O
O
Function
Serial 256 kbit/s disable signal to bypass the
canceller, NLP and attenuator and to reset the
H-Register and Speech Control unit on a per
channel basis. High active, maskable, leave
open or connect to ground if unused
Serial 256 kbit/s signal to disable the NLP on
a per channel basis. High active, maskable,
leave open or connect to ground if unused
Serial 256 kbit/s signal to freeze the H-
Registers on a per channel basis. High active,
maskable, leave open or connect to ground if
unused
Serial 256 kbit/s signal to disable A/ -Law
conversion on a per channel basis. High
active, maskable, leave open or connect to
ground if unused
Serial 256 kbit/s signal to enable clear channel
transparency on a per channel basis. High
active, maskable, leave open or connect to
ground if unused, same function as DIS=’1’
and CONVDIS=’1’
Flexible serial 256 kbit/s control signal on a
per channel basis. Configurable by register
CONFLEXSCTR. High active, maskable,
leave open or connect to ground if unused
Serial 256 kbit/s EC disable (signals bypass
channels) monitor output signal (’0’: EC on, ’1’:
EC off)
Serial 256 kbit/s NLP disable monitor output
signal (’0’: NLP on, ’1’: NLP off)
Serial 256 kbit/s H-Register freeze monitor
output signal (’1’: freeze, ’0’: no freeze)
Serial 256 kbit/s H-Register reset monitor
output signal (’1’: reset, ’0’: no reset)
21
Pin Descriptions
PEB 20954
PEF 20954
04.99