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Receive Latch - Motorola MC68838 User Manual

Media access controller
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2.2.1 Receive Latch

The receive latch clocks data from the ELM chip. The data signals are latched by using
an internal clock, SAMPLE_CLK (see SYMCLK description in Section 4, Signal
Description). The latched data signals are then relatched by BYTCLK to provide stable
symbols for MAC processing.
MAC-FSI RECEIVE
RECEIVE DATA
HOST INTERFACE
RECEIVE DATA LATCH
MAC-PHY RECEIVE
2-2
CLOCK SIGNALS
SIGNALS
NODE PROCESSOR SIGNALS
NODE PROCESSOR
INTERFACE
ADDRESS
COMPARE
RECEIVE
FSM
COUNTERS
SENT
COUNT
RECEIVE
CRC
CHECKER
SIGNALS
Figure 2-1. MAC Block Diagram
MC68838 USER'S MANUAL
MAC-FSI TRANSMIT
SIGNALS
TRANSMIT DATA
HOST INTERFACE
SEND
FRAME
CAPTURE
TOKEN
TRANSMIT
FSM
TIMERS
TRANSMIT DATA LATCH
TEST INTERFACE
TEST SIGNALS
TRANSMIT
CRC
MAC-PHY TRANSMIT
SIGNALS
MOTOROLA

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