psf21911 ETC-unknow, psf21911 Datasheet - Page 159

• Manufacturer Part Number: psf21911
• Description: Isdn Echocancellation Circuit Terminal Applications Iec-q
• Manufacturer: ETC-unknow

Semiconductor Group
Table 31
Table 32
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
No.
No.
PMODE
TE
ACT
BS
SGL
CBAC
EOC=25
EOC=27
T1 set
T1 expired
TD1 set
TD1 expired
BAC
SG
D0
Signal name
Signal name
State Machine Input Signals
State Machine Output Signals
Corresponds to the PMODE pin. Set to "1" (only) in the
microprocessor mode
This input is set to "1" (only) in the TE mode
"1" on this input indicates receiver synchronization (e.g. in
the Transparent state, see IEC-Q V4.3 User‘s Manual
02.95, page 175).
SWST:BS bit.
SWST:SGL bit.
ADF:CBAC bit.
This input indicates that the EOC code 25h (stop) was
received on the U interface.
This input indicates that the EOC code 27h (go) was
received on the U interface.
A 500 micro seconds timer is enabled.
The 500 micro seconds timer (see 9) has expired.
The timer TD1 is enabled. This timer depends on the
position of the EOC frame in the currently received U data.
It varies between 7.5 and 15 ms.
The timer TD1 has expired. This timer depends on the
position of the EOC frame in the currently received U data.
It varies between 7.5 and 15 ms.
BAC bit on DIN. This is bit no. 27 positioned in the third
IOM slot
Value of the S/G bit on DOUT. The S/G bit is bit no. 27 in
the third slot on DOUT. SG=Z Means that the SG bit has
the value high Z
Sets the D channel upstream to "0" if active ("1")
159
Description
Description
PSB 21911
PSF 21911
Appendix
11.97