PEB2254H-V14 Infineon Technologies, PEB2254H-V14 Datasheet - Page 119

• Manufacturer Part Number: PEB2254H-V14
• Manufacturer: Infineon Technologies

Specifications of PEB2254H-V14

• Operating Supply Voltage (typ): 5V
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Receive FIFO (Read) RFIFO
RFIFO
Reading data from RFIFO can be done in an 8-bit (byte) or 16-bit (word) access
depending on the selected bus interface mode. The LSB is received first from the serial
interface.
The size of the accessible part of RFIFO is determined by programming the bits
CCR1.RFT 1 … 0 (RFIFO threshold level). It can be reduced from 32 bytes (RESET
value) down to 2 bytes (four values: 32, 16, 4, 2 bytes).
Data Transfer
Up to 32 bytes/16 words of received data can be read from the RFIFO following an RPF
or an RME interrupt.
RPF Interrupt: A fixed number of bytes/words to be read (32, 16, 4, 2 bytes). The
message is not yet complete.
RME Interrupt: The message is completely received. The number of valid bytes is
determined by reading the RBCL, RBCH registers.
RFIFO is released by issuing the “Receive Message Complete” command (RMC).
Framer Receive Status Register 0 (Read)
FRS0
LOS…
Semiconductor Group
7
7
LOS
RF7
Loss of Signal
Detection:
This bit is set when the incoming signal has “no transitions” (analog
interface) or logical zeros (dig. interface) in a time interval of T
consecutive pulses, where T is programmable via PCD register.
Total account of consecutive pulses: 16 < T < 4096.
Analog interface: The receive signal level where “no transition” will be
declared is defined by the programmed value of LIM1.RIL2-0.
AIS
LFA
RRA
119
AUXP
NMF
Operational Description E1
LMFA
0
0
RF0
PEB 2254
(00/01)
(4C)
11.96