PSB7110 Datasheet, PDF (111/164 Pages) Siemens Semiconductor Group – Enhanced ISDN Data Access Controller ISAR

_________________________________________________PSB 7110
3.7.3.4
Pump Status Events - V.110 (ISAR
→ Host)
7
6
5
4
3
2
1
0
DPS
MSC
MDS
IIS
1
0
1
0
1
0
CTRL MSB
15
14
13
12
11
10
9
8
VEVT
CTRL LSB
7
6
5
4
3
2
1
0
NOM
1. Parameter
7
6
5
4
3
2
1
0
-
-
-
-
X
SB SA1 SA0
or:
1. Parameter
7
6
5
4
3
2
1
0
-
E1
E2
E3
E4
E5
E6
E7
or:
1. Parameter
7
6
5
4
3
2
1
0
-
-
-
ROF0 ROF1 RON1 ROFX RONX
DPS ... Datapath selection
01: path 1
10: path 2
VEVT ... V.110 Event
Contains one of the following V.110 events. For some of the events one additional parameter
is provided via the mailbox.
02h:
30h:
40h:
60h:
61h:
70h:
71h:
90h:
A0h:
10 ms timer interrupt (if enabled; see 3.8.2 Timer Interrupt Request)
Change in S-bits received (NOM=1).
The S-bits are specified in the first parameter.
Change in E-bits received (NOM=1).
The E-bits are specified in the first parameter.
Synchronisation lost (NOM=0).
This event is released for a change from synchronised to not synchronised.
Synchronisation achieved (NOM=0).
This event is released for a change from not synchronised to synchronised.
Change in X-bit from 1 → 0 received (NOM=0).
Change in X-bit from 0 → 1 received (NOM=0).
Mailbox buffer empty (NOM=0)
This event indicates to the host, that the last data is transmitted and that the mailbox
transmit buffer is empty. This event must be enabled by the host (see 3.6.2.4 Pump
Control Command - V.110) and it is generated only once, i.e. for further state
transitions from "not empty" to "empty", the generation of the status event must be
reenabled again.
DTE status (NOM=1)
The first parameter contains information about the status of the remote DTE. The
received D- and SA-bits are sampled and compared against different possibilities. A
status change is detected by a match of the comparison and indicated to the host.
The generation of DTE status events can be enabled/disabled by control commands
(see 3.6.2.4 Pump Control Command - V.110).
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