TMS370 datasheet(59/73 Pages) TI

59 / 73 page

TMS370Cx6x

8-BIT MICROCONTROLLER

SPNS033C – SEPTEMBER 1995 – REVISED FEBRUARY 1997

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

PARAMETER MEASUREMENT INFORMATION

timing parameter symbology

Timing parameter symbols have been created in accordance with JEDEC Standard 100. In order to shorten the

symbols, some of the pin names and other related terminology have been abbreviated as follows:

Address

RXD

SCIRXD

Array

Slave mode

Byte

SYSCLK

XTAL2/CLKIN

SCC

SCICLK

Data

SIMO

SPISIMO

EDS

SOMI

SPISOMI

Final

SPC

SPICLK

Initial

TXD

SCITXD

Master mode

Write

PGM

Program

WAIT

Read

Lowercase subscripts and their meanings are:

cycle time (period)

rise time

delay time

setup time

fall time

valid time

hold time

pulse duration (width)

The following additional letters are used with these meanings:

High

Low

Valid

High impedance

All timings are measured between high and low measurement points as indicated in Figure 22 and Figure 23.

0.8 V (Low)

2 V (High)

0.8 V (Low)

0.8 VCC V (High)

Figure 22. XTAL2/CLKIN Measurement Points

Figure 23. General Measurement Points

TMS370 Datasheet(PDF) 59 Page - Texas Instruments

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