Bus acg13 od, Bus tag16 50 – Measurement Computing Analyzer488 User Manual

Page 25

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Section 2

Getting Started

2.3

Enter the following commands at the keyboard controller prompt (CMD>) and

observe the Analyzer488 display:

SRQ

IFC

REN

ATN

EOI

LOCATION

MESSAGE

CMD> output 16;F0R0X

BUS

ACG13 OD

¼

¼

CMD> enter 16;eoi

BUS

TAG16 50

¼

¼

NDCV-000.0156E-3

The display of the Analyzer488 after each command shows the last byte that was

transferred on the bus. Although you only see the last data byte, several bytes were
transferred. To view each transaction at at readable rate, set the handshake speed to
Slow by pressing the [SLOW] key. Set the rate to 3 bytes per second by pressing the
[SHIFT] key followed by the [SLOW] key. Use the curosr keys to select a rate of 3
steps per second then press [ENTER].

Enter the same commands to the keyboard controller. Observe the Anlayzer488

display and you will see the bus activity at 3 bytes per second:

SRQ

IFC

REN

ATN

EOI

LOCATION

MESSAGE

CMD> output 16;F0R0X

BUS

TAG21

55

¼

¼

BUS

UNL

3F

¼

¼

BUS

LAG21 30

¼

¼

BUS

'F' 46

¼

BUS

'0' 30

¼

BUS

'R' 52

¼

BUS

'0' 30

¼

BUS

'X' 58

¼

BUS

CR OD

¼

¼

BUS

ACG13 OD

¼

¼

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