Serial Port Mode 0 Timings - Intel 80C186EB Manual

AC SPECIFICATIONS

Serial Port Mode 0 Timings

Symbol
T TXD Clock Period
XLXL
T TXD Clock Low to Clock High (n
XLXH
T TXD Clock Low to Clock High (n
XLXH
T TXD Clock High to Clock Low (n
XHXL
T TXD Clock High to Clock Low (n
XHXL
T RXD Output Data Setup to TXD Clock High (n
QVXH
T RXD Output Data Setup to TXD Clock High (n
QVXH
T RXD Output Data Hold after TXD Clock High (n
XHQX
T RXD Output Data Hold after TXD Clock High (n
XHQX
T RXD Output Data Float after Last TXD Clock High
XHQZ
T RXD Input Data Setup to TXD Clock High
DVXH
T RXD Input Data Hold after TXD Clock High
XHDX
NOTES
1 See Figure 12 for waveforms
2 n is the value of the BxCMP register ignoring the ICLK Bit (i e ICLK
(Continued)
(80C186EB25 20 13 80L186EB16 13 8)
Parameter
1)
l
1)
e
1)
l
1)
e
l
e
80C186EB 80C188EB 80L186EB 80L188EB
Min
T (n 1)
a
2T 35 2T
b
T 35 T
b
(n 1) T 35 (n
b b b
T 35 T
b
1) (n 1) T 35
b b
1) T 35
b
1) 2T 35
l b
1) T 35
e b
T
T 20
a
0
0)
e
Max Unit Notes
ns 1 2
35 ns 1
a
35 ns 1
a
1) T 35 ns 1 2
a
35 ns 1
a
ns 1 2
ns 1
ns 1
ns 1
20 ns 1
a
ns 1
ns 1
37