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IP2022 Data Sheet
5.6.9
SxTCFG Register
5.6.10 SxINTF Register
7
6
5
4
0
GLOBEN LPBACK TPOREV
TXSCNT4:0
Name
Description
GLOBEN
Global enable bit
0 = Disable SERDES output
1 = Enable SERDES output
LPBACK
Loopback enable bit
0 = Normal operation
1 = Output is driven into input
TPOREV
Transmit data polarity reversal select
0 = Data polarity uninverted
1 = Data polarity inverted
TXSCNT4:0 Transmit shift count, specifies number of
bits to transmit
7
6
5
4
3
2
1
0
Name
Description
RXERROR
Receive error interrupt flag
10Base-T mode: Manchester encod-
ing data phase error
USB mode: bit unstuffing error
(1111111 received)
0 = Receive error has not been
detected since this bit was
last cleared
1 = Receive error has been
detected
RXEOP
End-of-Packet detection interrupt flag
10Base-T and USB modes: end-of-
packet detected
GPSI mode: RxEN deasserted
0 = End-of-Packet has not been
detected since this bit was
last cleared
1 = End-of-Packet has been
detected
SYND
Synchronization pattern detection
interrupt flag (10Base-T and USB
modes only)
0 = Synchronization pattern has
not been detected since this
bit was last cleared
1 = Synchronization pattern has
been detected
TXBE
Transmit buffer empty interrupt flag
0 = Transmit buffer has not been
empty since this bit was last
cleared
1 = Transmit buffer has been
empty
TXEOP
Transmit underrun. This bit is set
when the previous data in the trans-
mit buffer register (SxTXBUF) has
been transmitted and no new data
has been loaded in the register. In
USB and 10Base-T modes, this
causes an EOP condition to be gen-
erated.
0 = Transmit underrun has not
occurred since this bit was
last cleared
1 = Transmit underrun has
occurred
SXLINKPULSE
10Base-T mode: set after a link pulse
of 75 to 250 ns duration is detected.
0 = No link pulse has been
detected since this bit was
last cleared
1 = Link pulse detected
USB mode:
0 = SERDES is transmitting
1 = SERDES is not transmitting
Name
Description
