pef22504 Infineon Technologies Corporation, pef22504 Datasheet - Page 199

• Manufacturer Part Number: pef22504
• Description: Quad E1/t1/j1 Line Interface Component For Long- And Short-haul Applications Pef 22504 E, Pef 22504 Ht, Version 2.1
• Manufacturer: Infineon Technologies Corporation

Field
XLS
XLO
Data Sheet
Bits
1
0
Type
r
r
Description
Transmit Line Short
See
by LIM1.DRS = ´0´.
0
1
Transmit Line Open
See also
0
1
B
B
B
B
Chapter
of the short the pins XL1 and XL2 are automatically forced into a
high-impedance state if bit XPM2.DAXLT is reset. After 128
consecutive pulse periods the outputs XL1/2 are activated again
and the internal transmit current limiter is checked. If a short
between XL1/2 is still further active the outputs XL1/2 are in high-
impedance state again. When the short disappears pins XL1/2 are
activated automatically and this bit is reset. With any change of this
bit an interrupt ISR1.XLSC is generated. In case of XPM2.XLT is
set this bit is frozen.
XL1/XL2 or XDOP/XDON. This bit is reset with the first transmitted
pulse. With the rising edge of this bit an interrupt ISR1.XLSC is set.
In case of XPM2.XLT is set this bit is frozen.
The XL1 and XL2 are shortened for at least 3 pulses. As a reaction
Normal operation. No short is detected.
Normal operation
This bit is set if at least 32 consecutive zeros were sent on pins
Chapter
3.9.7. Significant only if the ternary line interface is selected
199
3.9.7.
Register DescriptionLine Status Register 1
Rev. 1.3, 2006-01-25
QuadLIU
PEF 22504
TM