864075 datasheet(39/43 Pages) INTEL

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PRELIMINARY

8XC196NU COMMERCIAL CHMOS 16-BIT MICROCONTROLLER

6.2.6

AC CHARACTERISTICS — SERIAL PORT, SYNCHRONOUS MODE 0

Figure 13. Serial Port Waveform — Synchronous Mode 0

Table 17. Serial Port Timing — Synchronous Mode 0

Symbol

Parameter

Min

Max

Units

XLXL

Serial Port Clock period

SP_BAUD

≥ x002H

SP_BAUD

= x001H (Note 1)

XLXH

Serial Port Clock falling edge to rising edge

SP_BAUD

≥ x002H

SP_BAUD

= x001H (Note 1)

4t – 27

2t – 27

4t + 27

2t + 27

QVXH

Output data setup to clock high

4t – 30

XHQX

Output data hold after clock high

2t – 30

XHQV

Next output data valid after clock high

2t + 30

DVXH

Input data setup to clock high

2t + 30

XHDX

Input data hold after clock high

XHQZ

Last clock high to output float

t + 30

NOTE:

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.

Valid

RXD

(In)

(Out)

TXD

TQVXH

TXLXL

TDVXH

TXHQV

TXHQZ

TXHDX

TXHQX

TXLXH

A2080-02

RXD

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