PEF22558EV11GXP Lantiq, PEF22558EV11GXP Datasheet - Page 41

• Manufacturer Part Number: PEF22558EV11GXP
• Manufacturer: Lantiq

Specifications of PEF22558EV11GXP

• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Compliant

9.2
The active clock edge of SYPX can be selected related to that of the other interface
transmit data and marker. Also selection of the clock edge for SYPR is possible related
to that of the other interface receive data and marker. Use register bits SIC4.SYPRCE,
or SIC4.SYPXCE. Note that the clock selection of the transmit data and marker with
exception of SYPX is done by SIC3.RESX and that of the receive data and marker with
exception of SYPR is done by SIC3.RESR.
9.3
•
•
•
Table 11
- RRTRI /
- RRTRI exor RTDMT if
RTDMT is selected on MFP
1
0
0
Delta Sheet
FSC can be switched into tristate mode by setting SIC3.FSCT = 1.
RDO and RSIG can be switched into tristate mode for unused time slots by setting
SIC3.RTRI = ´1´.
RDO, RSIG, SCLKR and RFM can be set into tristate mode constantly (for
redundancy applications) using the registerbit SIC3.RRTRI and - if the RTDMT
function is selected on one of the multi fuction port - by RTDMT. If the RTDMT
function is selected the values of RTDMT and SIC3.RRTRI are logically exored. This
enables an easy redundance application using only one signal for switching between
two devices, see the next chapter. If the RTDMT function is not selected
SIC3.RRTRI = ´1´ set the pins into tristate mode constantly. In this mode “tristate”
means high impedance against V
active.
Clock Edge Selection
Tristate Modes
Tristate Configurations for the RDO, RSIG, SCLKR and RFM Pins
RTRI
x
0
1
DD
RDO, RSIG
Constant tristate
(without pull up and
pull down resistor)
Never tristate
Tristate during
inactive channel
phases (with pull up
resistor)
and V
41
SS
: No pull up or pull down resistor is
SCLKR, RFM
Constant tristate
(without pull up and
pull down resistor)
Never tristate
Rev. 2.0, 2005-05-03
System Interface
OctalFALC
PEF 22558 E
TM