SP37E760 Datasheet, PDF (65/78 Pages) SMSC Corporation – 3.3 V I/O CONTROLLER FOR EMBEDDED APPLICATIONS

9.2 Serial Port Timing
nIOW
nRTSx,
nDTRx
IRQx
nCTSx,
nDSRx,
nDCDx
t2
IRQx
nIOW
IRQx
nIOR
nRIx
t1
t5
t3
t6
t4
Parameter
min
typ
t1 nRTSx, nDTRx Delay from nIOW
t2 IRQx Active Delay from nCTSx, nDSRx,
nDCDx
t3 IRQx Inactive Delay from nIOR (Leading
Edge)
t4 IRQx Inactive Delay from nIOW (Trailing
Edge)
t5 IRQx Inactive Delay from nIOW
10
t6 IRQx Active Delay from nRIx
FIGURE 7 - SERIAL PORT TIMING
max
200
100
120
125
100
100
units
ns
ns
ns
ns
ns
ns
SMSC DS – SP37E760
Page 65
Rev. 04/13/2001