S80296 datasheet(34/40 Pages) INTEL

34 / 40 page

PRELIMINARY

80296SA COMMERCIAL CHMOS 16-BIT MICROCONTROLLER

6.2.6

AC CHARACTERISTICS — SERIAL PORT, SYNCHRONOUS MODE 0

Figure 12. Serial Port Waveform — Synchronous Mode 0

Table 13. Serial Port Timing — Synchronous Mode 0

Symbol

Parameter

Min

Max

Units

XLXL

Serial Port Clock period†

SP_BAUD

≥ x002H

SP_BAUD

= x001H

XLXH

Serial Port Clock falling edge to rising edge †

SP_BAUD

≥ x002H

SP_BAUD

= x001H

4t – 15

2t – 15

4t + 15

2t + 15

QVXH

Output data setup to clock high (see Note)

SP_BAUD

≥ x002H

SP_BAUD

= x001H

4t – 15

2t – 15

4t + 15

2t + 15

XHQX

Output data hold after clock high

2t – 20

XHQV

Next output data valid after clock high

2t + 20

DVXH

Input data setup to clock high (see Note)

SP_BAUD

≥ x002H

SP_BAUD

= x001H

2t + 10

t + 10

XHDX

Input data hold after clock high

XHQZ

Last clock high to output float

2t + 15

† The minimum baud-rate (SP_BAUD) register value is x002H for receptions and x001H for transmissions.

Valid

RXD

(In)

(Out)

TXD

TQVXH

TXLXL

TDVXH

TXHQV

TXHQZ

TXHDX

TXHQX

TXLXH

A2080-02

RXD

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