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nPULSE2
t1
t3
t7
Parameter
nPULSE1, nPULSE2 Pulse Width
nPULSE1, nPULSE2 Overlap
RXIN Period
min
100
-10
max units
nS
nS
nPULSE1
t1
* t1 = 2 x (crystal period) for clock frequencies other than 20 MHz.
t6
RXIN Pulse Width
t2
t2
nPULSE1, nPULSE2 Period
nS
t1
t3
400
0
+10
typ
*
*
* t2,t7 = 8 x (crystal period) for clock frequencies other than 20 MHz.
This period applies to data of two consecutive one's.
RXIN
t6
t7
10
400 *
nTXEN
nS
nS
t2
t4
t5
LAST BIT
(400 nS BIT TIME)
t4
nTXEN Low to nPULSE1 Low**
850
950 nS
t5
Beginning of Last Bit Time to nTXEN High**
250
350 nS
** t4: For clock frequencies other than 20 MHz, t4 = 18 x (crystal period)
+ 50 nsec.
** t5: For clock frequencies other than 20 MHz, t5 = 6 x (crystal period)
+ 50 nsec.
100
*
FIGURE 14 - NORMAL MODE TRANSMIT OR RECEIVE TIMING
(These signals are to and from the hybrid)