PEB20570FV31XP Infineon Technologies, PEB20570FV31XP Datasheet - Page 105

• Manufacturer Part Number: PEB20570FV31XP
• Manufacturer: Infineon Technologies

Specifications of PEB20570FV31XP

• Lead Free Status / Rohs Status: Compliant

4.2.9.2
Figure 30
Receive Direction
• The received frame start is recognized by the F-bit. Since the DELIC is a slave in the
• The received L- and N-bits are discarded
• The received E-bit is compared with the last transmitted D-bit—if collision is detected
• The received B- and D-channel data bits, A-, F
Transmit Direction
• According to ITU.430, the 2-bit delay between received and transmitted frames must
• The F- and L-bits are generated and inserted into the S/T frame
Data Sheet
LT-T mode, the received frames may start at any point of time, and the frame start
recognition is performed for each channel independently.
on the D-channel it is reported to the DSP
information about collision detected on the D-channel are stored in the Data RAM.
be guaranteed at the TE (i.e., this delay must be controlled by the VIP). Because of
the VIP delay in both receive and transmit directions (this delay is the same for all LT-
T lines and is always constant (TBD during VIP design)), the TRANSIU starts the LT-
T frame transmission before the F-bit of received frame is recognized.
Rx
Tx
VIP hardware:
F-bit & CV detection
E-bit collision detection
FIFOs:
- for jitter etc.
Inversion of data (B1, B2, D)
Inversion of data (B1, B2, D)
Rx:
Tx:
VIP hardware:
F-bit & CV generation
VIP
Rx FIFOs
F,L
LT-T Mode
Handling of So Frame in LT-T Mode (One Channel)
D
E
INV
INV
TRANSIU
TRANSIU hardware:
N- and L-bit discard
E-/D-bit handling,
collision detection
TRANSIU hardware:
F-, L-bit generation
SYNC
F
A
88
Tx buffer
Rx buffer
250 µs
E / D
a
Q-FIFO
-, M- and S-bits as well as the
S-FIFO
F
DSP software:
DSP software:
Generation of complete S frame
M-bit & S-channel handling
A-bit handling (INFO 2 or 4)
Q-channel handling
D-channel priority handling
A
-bit check every 5th frame
Functional Description
DSP
PEB 20570
PEB 20571
DELIC
2003-07-31