nIOW
nRTSx,
nDTRx
IRQx
nCTSx,
nDSRx,
nDCDx
IRQx
nIOW
IRQx
nIOR
nRIx
t1
t5
t2
t3
t6
t4
FIGURE 10 - SERIAL PORT TIMING
NAME
DESCRIPTION
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
t6 IRQx Active Delay from nRIx
MIN TYP MAX UNITS
200
ns
100
ns
120
ns
125
ns
10
100
ns
100
ns
174