PEF2256EV22NP Lantiq, PEF2256EV22NP Datasheet - Page 285

• Manufacturer Part Number: PEF2256EV22NP
• Manufacturer: Lantiq

Specifications of PEF2256EV22NP

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Supplier Unconfirmed

If access to these registers is done without control of the interrupt ISR1.XMB the
registers should be written twice to avoid an internal data transfer error.
Note: A software reset (CMDR.XRES) resets these registers.
Port Configuration 1 to 4 (Read/Write)
Value after reset: 00
PC1
PC2
PC3
PC4
RPC(3:0)
Data Sheet
RPC13
RPC23
RPC33
RPC43
7
RPC12
RPC22
RPC32
RPC42
Receive multifunction port configuration
The multifunction ports RP(A to D) are bidirectional. After Reset these
ports are configured as inputs. With the selection of the pin function
the In/Output configuration is also achieved. The input function SYPR
may only be selected once, it must not be selected twice or more.
Register PC1 configures port RPA, while PC2
PC3
0000 = SYPR: Synchronous Pulse Receive (Input)
0001 = RFM: Receive Frame Marker (Output)
H
Together with register RC(1:0) SYPR defines the frame begin
on the receive system interface. Because of the offset
programming the SYPR and the RFM pin function cannot be
selected in parallel.
CMR2.IRSP = 0 and GPC1.SRFM = 0:
The receive frame marker is active high for one 2.048 MHz
period during any bit position of the current frame.
Programming of the bit position is done by using registers
RC(1:0). The internal time slot assigner is disabled. The RFM
offset calculation formula has to be used.
CMR2.IRSP = 0 and GPC1.SRFM = 1:
The receive frame marker is active high for one system period
as programmed by SIC1.SSC during any bit position of the
current frame. Programming of the bit position is done by using
registers RC(1:0). The internal time slot assigner is disabled.
The RFM offset calculation formula has to be used.
port RPC and PC4
RPC11
RPC21
RPC31
RPC41
RPC10
RPC20
RPC30
RPC40
285
XPC13
XPC23
XPC33
XPC43
port RPD.
XPC12
XPC22
XPC32
XPC42
XPC11
XPC21
XPC31
XPC41
port RPB,
Rev. 1.1, 2005-06-13
XPC10
XPC20
XPC30
XPC40
PEF 2256 H/E
E1 Registers
0
FALC
(80)
(81)
(82)
(83)
®
56