IA186EB/IA188EB
Data Sheet
8-Bit/16-Bit Microcontrollers
July 10, 2011
5.3
Serial Port Mode 0 Timing Characteristics
Serial Port Mode 0 timing characteristics are illustrated in Figure 17 and collected in Table 20.
Figure 17. Serial Port Mode 0 Timing Characteristics
Table 20. Serial Port Mode 0 Timing Characteristics
Symbol
tXLXL
Parameter
Minimum
t (n +1)
2t – 35
t – 35
Maximum
–
2t + 35
t + 35
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
txd Clock Period
tXLXH
tXLXH
tXHXL
tXHXL
tQVXH
tQVXH
tXHQX
tXHQX
tXHQZ
tDVXH
tXHDX
txd Clock Low to Clock High (n > 1)
txd Clock Low to Clock High (n = 1)
txd Clock High to Clock Low (n > 1)
txd Clock High to Clock Low (n = 1)
rxd Output Data Setup to txd Clock High (n > 1)
rxd Output Data Setup to txd Clock High (n = 1)
rxd Output Data Hold after txd Clock High (n > 1)
rxd Output Data Hold after txd Clock High (n = 1)
rxd Output Data Float after Last txd Clock High
rxd Input Data Setup to txd Clock High
rxd Input Data Hold after txd Clock High
(n – 1) t – 35 (n – 1) t + 35
t – 35
(n – 1) t – 35
t – 35
2t – 35
t – 35
–
t + 35
–
–
–
–
t + 20
–
t + 20
0
–
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