
Bit 0
MFRES
: Mask for "channel free for "short message"'
1 = If a "short message" can be sent on the Parameters Channel, the
interrupt
signal
is set.
0 = If a "short message" can be sent on the Parameters Channel, the
interrupt
signal
is not set.
6.3.6
Summary mask
In the
MASK_SUM
summary mask register, the DSL Slave collective events are deter‐
mined with which the
SUM
event monitoring in the event register as well as the signal to
the interrupt pin are set (interrupt).
Several events can be masked to trigger an interrupt. In addition, events from the DSL
Master can be combined with these events (see
).
NOTE
It should be noted that the
MSUM
bit from the
MASK_H
register is an OR connection of
all bits of the summary mask register.
Register 08h:
Summary mask
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
MSUM7
MSUM6
MSUM5
MSUM4
MSUM3
MSUM2
MSUM1
MSUM0
Bit 7
Bit 0
Bit 7-0
MSUM7:MSUM0
: Mask for status summary bits
1 = In the set status, the corresponding status summary bit sets the
SUM
event moni‐
toring and the signal at the
interrupt
pin.
0 = In the set status, the corresponding status summary bit does not set the
SUM
event
monitoring and the signal at the
interrupt
pin.
6.3.7
Edges
The
EDGES
edge register contains the time control for the DSL cable bit sampling and
can be used to monitor the connection quality.
Each individual edge register bit is set if, at system start-up, an edge of the test signal is
detected during the time period of the corresponding bit. An edge is defined as a
change in cable value between successive detections. The sampling is carried out eight
times as fast as the cable bit rate.
Clean cable signals mean that only a few bits are set in the edge register, whilst noisy
cable signals set a large number of bits.
CAUTION
If all bits in the edge register are set, this is an indication of excessive interference in
the cable in which no connection can be established.
The register is write protected. The content of this register does not change after the
start-up phase. A new bit sampling pattern is only generated after a forced reset of the
protocol.
Register 09h:
Edges
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
Bit sampling pattern
REGISTER MAP
6
8017595/ZTW6/2018-01-15 | SICK
T E C H N I C A L I N F O R M A T I O N | HIPERFACE DSL
®
41
Subject to change without notice