DS3163 Maxim Integrated Products, DS3163 Datasheet - Page 64

• Manufacturer Part Number: DS3163
• Description: IC TRPL ATM/PACKET PHY 400-PBGA
• Manufacturer: Maxim Integrated Products

Specifications of DS3163

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 400-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ignored when TOHMOn is high. In the “- OHM Octet” framing modes, the first payload bit after the TOHMOn signal
goes low is the MSB (Bit 1) of a payload Octet.
The TDATn and TOHMOn signals change a small delay after the positive edge of the reference clock signal if the
clock pin is not inverted; other wise they change after the negative edge. The TOHMIn signal is sampled at the
rising edge of the reference clock signal if the clock pin is not inverted; otherwise it is sampled at the negative
edge. The TLCLKn clock pin is the clock reference typically used for the TDATn, TOHMOn and TOHMIn signals,
but they can be time referenced to the TCLKIn, TCLKOn, RLCLKn or RCLKOn clock pins. The TDATn, TOHMOn,
and TOHMIn pins can be inverted. See
Figure 8-5. TX Line I/O UNI OHM Functional Timing Diagram
Figure 8-6. TX Line I/O UNI Octet Aligned OHM Functional Timing Diagram
8.3.1.4
The RDATn pin is available when the line interface is in the UNI mode. The ROHMIn pin is available when the
framer is in one of the “-OHM” modes. The RLCVn pin is available when the line interface is in the UNI mode and
the framer is not in one of the “-OHM” modes. The line interface is forced into the UNI mode when the framer is in
one of the “-OHM” modes.
The ROHMIn pin is used to mark the RDATn bits that will be ignored by the internal receive logic. When the
ROHMIn pin is high, the internal framers and data sinks will ignore the corresponding RDATn bits. In the “- OHM
Octet” framing modes, the data on RDATn is octet-aligned with the ROHMIn signal, the first bit of the serial data on
RDATn is the MSB (Bit 1) of a payload Octet.
All bits on the RDATn pin, even the bits that are marked by ROHMIn, will come out the RSERn pin, if the RSERn
pin is enabled.
The signal on the RLCVn pin enables the BPV counter, which is in the line interface, to increment each clock it is
high.
The RDATn, ROHMIn and RLCVn signals are sampled at the rising edge of the reference clock signal if the clock
pin is not inverted; otherwise they are sampled at the negative edge. The RLCLKn clock pin is the clock reference
used for the RDATn, ROHMIn and RLCVn signals. The RDATn, ROHMIn and RLCVn pins can be inverted. Please
refer to
TOHMO
TLCLK
TOHMI
TOHMO
TDAT
TLCLK
TOHMI
TDAT
Figure 8-7
UNI Mode Receive Pin Functional Timing
B6 B7 B8
Octet n
and
Figure
EXT OH BIT LOCATIONS
8-8.
TDAT GAP FOR EXT OVERHEAD INSERTION
Figure 8-5
and
Figure
B1 B2 B3 B4 B5 B6 B7 B8 B1
ATM Cell /Packet Octet n+1
8-6.