pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 300
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pef20550
Manufacturer Part Number
pef20550
Description
Extended Line Card Interface Controller Elic
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEF20550.pdf
(407 pages)
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TVAL6 … 0:
The timer is started as soon as CMDR:ST is set to 1 and stopped by writing the TIMR
register or by selecting OMDR:OMS0 = 0.
If the timer is used to generate the last look period, it can still be used for timer interrupt
generation and/or FSC multiframe generation if it is acceptable that all three applications
use the same timer value.
Command Register EPIC
CMDR_E
Writing a logical 1 to a CMDR_E register bit starts the respective operation.
The signaling handler uses two command bits:
ST:
CFR:
Status Register EPIC
STAR_E
The status register STAR_E displays the current state of certain events within the ELIC.
The STAR_E register bits do not generate interrupts and are not modified by reading
STAR_E.
The following bit is indirectly used by the signaling handler:
TAC:
Note that the timer is only necessary for signaling channels (not C/I) and when using a
last look period greater or equal to 250 s.
Semiconductor Group
bit 7
bit 7
MAC
0
Timer Value bits 6 … 0; the timer period, equal to
(1 + TVAL6 … 0) 250
adjusted within the range of 250 s up to 32 ms.
Start Timer; must be set to 1 if the last look period is defined by
TIMR:TVAL6 … 0, i.e. if TIMR:SSR = 0. Note that if TIMR:SSR = 1,
the timer need not be started.
CIFIFO Reset; setting CFR to logical 1 resets the signaling FIFO
within 2 RCL periods, i.e. all entries and the ISTA:SFI bit are cleared.
Timer Active; the timer is running if TAC is set to logical 1, the timer
is not running if TAC is set to logical 0.
TAC
®
ST
®
PSS
TIG
MFTO
write
read
CFR
300
s, is programmed here. It can thus be
MFAB
MFT1
reset value:
reset value:
MFAE
MFT0
Application Hints
MFRW
MFSO
00
05
PEB 20550
PEF 20550
H
H
bit 0
bit 0
MFFR
MFFE
01.96
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