PEB3081FV14XP Lantiq, PEB3081FV14XP Datasheet - Page 93
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PEB3081FV14XP
Manufacturer Part Number
PEB3081FV14XP
Description
Manufacturer
Lantiq
Datasheet
1.PEB3081FV14XP.pdf
(198 pages)
Specifications of PEB3081FV14XP
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Compliant
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Preliminary
Synchronous Transfer
While looping, shifting and switching the data can be accessed by the controller between
the synchronous transfer interrupt (STI) and the status overflow interrupt (STOV).
The microcontroller access to the CDAxy registers can be synchronized by means of
four programmable synchronous transfer interrupts (STIxy) and synchronous transfer
overflow interrupts (STOVxy) in the STI register.
Depending on the DPS bit in the corresponding CDA_TSDPxy register the STIxy is
generated two (for DPS=’0’) or one (for DPS=’1’) BCL clock after the selected time slot
(CDA_TSDPxy.TSS). One BCL clock is equivalent to two DCL clocks.
In the following description the index xy
interrupt pairs (STI/STOV) out of the four CDA interrupt pairs (STI10/STOV10, STI11/
STOV11, STI20/STOV20, STI21/STOV21).
An STOVxy
acknowledged. However, if STIxy
STIxy
Table 9
generated because an STI interrupt was not acknowledged before.
In example 1 only the STIxy
enabled, no interrupt will be generated even if STOV is enabled (example 2).
In example 3 STIxy
disabled. STIxy
generated due to STIxy
enabled, so STOVxy
In example 5 additionally the STIxy
generated due to STIxy
Compared to the previous example STOVxy
not generated and STOVxy
Compared to example 5 in example 7 a third STOVxy
generated additionally for both STIxy
Data Sheet
1
which is enabled and not acknowledged.
gives some examples for that. It is assumed that an STOV interrupt is only
0
is related to its STIxy
1
is disabled but its STOVxy
0
0
and STOVxy
is enabled and generated and the corresponding STOVxy
0
0
and STOVxy
. In example 4 additionally the corresponding STOVxy
1
0
is only generated for STIxy
is enabled and thus STIxy
0
0
1
is masked, the STOVxy
and is only generated if STIxy
1
are both generated due to STIxy
0
1
is enabled with the result that STOVxy
and STIxy
is only generated due to STIxy
0
93
and xy
0
1
is disabled in example 6, so STOVxy
is enabled, and therefore STOVxy
1
.
1
Description of Functional Blocks
are used to refer to two different
2
is enabled and thus STOVxy2 is
0
1
is only generated. If no STI is
but not for STIxy
0
is generated for any other
0
is enabled and not
0
1
.
.
0
.
PEB 3081
PEF 3081
2000-09-27
0
is only
0
0
1
0
is
is
is
is
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