COM90C66 Datasheet, PDF (57/76 Pages) SMSC Corporation – ARCNET Controller/Transceiver with AT Interface and On-Chip RAM

nPULSE1
t2
t1
t1
nPULSE2
t3
Parameter
t1 nPULSE1, nPULSE2 Pulse Width
t2 nPULSE1, nPULSE2 Period
t3 nPULSE1, nPULSE2 Overlap
min typ max units
100
nS *
400
nS **
-10
0 +10 nS
*NOTE 1: t1 = 2 X (crystal period) for clock frequencies other than 20 MHz.
**NOTE 2: t2 = 8 X (crystal period) for clock frequencies other than 20 MHz.
This period applies to data of two consecutive one's.
FIGURE 22 - TRANSMIT TIMING
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