80C196EA Datasheet, PDF (34/46 Pages) Intel Corporation – CHMOS 16-BIT MICROCONTROLLER

8xC196EA — AUTOMOTIVE
6.5 AC Characteristics — Serial Port, Shift Register Mode
Table 10. Serial Port Timing — Shift Register Mode
Symbol
Parameter
Min
Max
Units
T_XLXL
Serial Port Clock period
SP_BAUD ≥ x002H
SP_BAUD = x001H^†
6t
ns
4t
ns
T_XLXH
Serial Port Clock falling edge to rising edge
SP_BAUD ≥ x002H
SP_BAUD = x001H^†
4t – 27
2t – 27
4t + 27
ns
2t + 27
ns
T_QVXH
Output data setup to clock high
4t – 30
ns
T_XHQX
Output data hold after clock high
2t – 30
ns
T_XHQV
Next output data valid after clock high
2t + 30
ns
T_DVXH
Input data setup to clock high
2t + 30
ns
T_XHDX
Input data hold after clock high
0
ns
T_XHQZ
Last clock high to output float
t + 30
ns
† _{The minimum baud-rate (SP_BAUD) register value for receive is x002H and the minimum baud-rate}
(SP_BAUD) register value for transmit is x001H.
TXDx
T_QVXH
RXDx
(Out)
RXDx
(In)
T_XLXL
0
T_DVXH
Valid
1
Valid
T_XLXH ^TXHQV
2
Valid
3
T_XHDX
Valid
4
Valid
T_XHQX
5
Valid
T_XHQZ
6
7
Valid
Valid
A2080-03
Figure 9. Serial Port Waveform — Shift Register Mode
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