DS33W41+ Maxim Integrated Products, DS33W41+ Datasheet - Page 333

• Manufacturer Part Number: DS33W41+
• Description: IC MAPPING ETHERNET 256CSBGA
• Manufacturer: Maxim Integrated Products

Specifications of DS33W41+

• Applications: Data Transport
• Interface: Parallel/Serial
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Package / Case: 256-CSBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.2 Functional Serial Interface Timing
The Serial Interface provides flexible timing to interconnect with a wide variety of serial devices. Figure 11-9 shows
the basic functional timing relationship for the transmit serial port interface. TCLK may be gapped during Framing
Overhead positions or to support Fractional T1/E1/T3/E3, as shown in Figure 11-11. The device provides the
TSYNC signal as a frame or byte boundary indication to an external interface. TSYNC is normally active high on
the first bit of the multiframe, but can be programmed to occur up to three cycles early, as shown in Figure 11-12.
TSYNC is minimally one pulse wide, but may be active for multiple clock cycles.
Figure 11-9. Transmit Serial Port Interface, without VCAT
Figure 11-10. Transmit Serial Port Interface with VCAT
Figure 11-11. Transmit Serial Port Interface, with Gapped Clock
Rev: 063008
________________________________________________ DS33X162/X161/X82/X81/X42/X41/X11/W41/W11
TSYNC
TSYNC
TSYNC
TDATA
TDATA
TDATA
TCLK
TCLK
TCLK
LSB.....
MSB
MSB
Encapsulated Ethernet Data
MSB
VCAT OH
Encapsulated Ethernet Data
MSB
MSB
Encapsulated Ethernet Data
Encapsulated Ethernet Data
MSB
Encapsulated Ethernet Data
MSB
MSB
Encapsulated Ethernet Data
Encapsulated Ethernet Data
MSB
Encapsulated Ethernet
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