83C795 Datasheet, PDF (106/136 Pages) List of Unclassifed Manufacturers – Ethernet System Controller

AC OPERATING CHARACTERISTICS AND TIMING
83C795
10.0 AC OPERATING CHARACTERISTICS AND TIMING
T his s ections provides timingdiagrams andparameters for 83C795 s ignals . Table 10-1 indicates the timing
diagrams included in this s ection. Table 10-2 indicates the timing parameters applying to each timing
diagram. E xcept where otherwis e noted, timing units are in nanos econds.
FIGURE
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-11
10-12
10-13
10-14
10-15
10-16
10-17
10-18
10-19
10-20
10-21
10-22
10-23
TITLE
S ystem Clock T iming
R egister Acces s T iming – R ead
R egister Acces s T iming – Write
16-bit R egis ter Acces s (I/O Pipe Only)
Host Memory Access (16-bit, Z WS )
Host Memory Access (8-bit, No Z WS )
Host Memory Access (8-bit, Z WS )
Host Memory Access (8-bit, No Z WS )
R om Acces s (8-bit Only, R ead Only)
DMA or Memory Cache Writes
DMA or Memory Cache R eads
E E PR OM Interface
T rans mit T iming – S tart Of T rans mis s ion
T ransmit T iming– EndOf T ransmission (last bit = 1)
T ransmit T iming– EndOf T ransmission (last bit = 0)
R eceive T iming – S tart Of Packet
R eceive T iming – E nd Of Packet
Collis ion T iming – AUI
Collis ion T iming – T P
Loopback T iming
S QE Test T iming
Link Tes t Puls e
R OM Dump (Tes t Mode)
TABLE 10-1. LIST OF TIMING DIAGRAMS
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