PEB3265 Infineon Technologies Corporation, PEB3265 Datasheet - Page 79

• Manufacturer Part Number: PEB3265
• Description: (PEB326x / PEB426x) Dual Channel Slicofi-2 / Slic Duslic
• Manufacturer: Infineon Technologies Corporation

Preliminary
Table 12
SLICOFI-2x
Mode
Ground Start
Ring Pause
1)
2)
3)
4)
Sleep (SL) (only available with DuSLIC-E/-E2/-P)
The SLICOFI-2 is able to go into a sleep mode with minimal power dissipation. In this
mode off-hook detection is performed without any checks on spikes or glitches. The
sleep mode can be used for either channel, but for the most effective power saving, both
channels should be set to this mode. Note that this requires the following:
• Due to the lack of persistence checking only non-noisy lines should use this feature.
• If both channels are set to the sleep mode, waking up takes about 1.25 ms, since the
• If only one channel is set to sleep mode, persistence checking and off-hook indication
• A sleeping SLICOFI-2 is woken up if the CS pin is drawn to low level when the PCM/
• After a wake up from Sleep mode the SLICOFI-2 enters the PDRH or PDRR mode.
Data Sheet
CIDD = Data Downstream Command/Indication Channel Byte (IOM-2 interface)
CIOP = Command/Indication Operation
For further information see
if not otherwise stated in the table, the bits ACTL, ACTR, HIT, HIR have to be set to 0.
only for SLIC-S
ACTx means ACTH, ACTL or ACTR.
on-chip PLL is also switched off. Therefore it is also possible to switch off all external
clocks. In this time no programming or other functionality is available. The off-hook
event is indicated either by setting the interrupt pin to active mode if the PCM/ C
interface mode is selected or by pulling down the DU pin if IOM-2 interface is used.
is performed as in any other mode, but the off-hook level is fixed to 2 mA at the
subscriber line. No special wake-up is needed if only one channel is in sleep mode. A
simple mode change ends the sleep mode.
that no programming is possible until the SLICOFI-2 wakes up. In IOM-2 mode the
identification request can be used as a wake-up signal since this command is
independent of the internal clock. In the PCM/ C mode it is recommended to set the
CS to 0 for only one clock cycle.
To re-enter the Sleep mode it is necessary to perform a mode change to any Active
mode at least at one channel first.
C interface is used or the MX bit is set to zero when the IOM-2 interface is used. Note
Overview of DuSLIC Operating Modes (cont’d)
SLIC-S/
SLIC-S2
HIT
ACTR
3)
“SLICOFI-2x Command Structure and Programming” on Page
SLIC Type
SLIC-E/
SLIC-E2
HIT
ACTR
SLIC-P M2 M1 M0
HIT
ACTR
ROR
ROT
79
1
1
0
CIOP
CIDD/
0
0
0
1)
0
0
1
Additional Bits used
(Note
–
ACTR = 0
HIR = 1
HIT = 1
Operational Description
2)
)
163.
2000-07-14
DuSLIC