Chapter 6: Ncr 7460 2X20 Customer Display; Introduction; Viewing Area; Diagnostics - NCR 7460 User Manual

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Chapter 6:

Introduction

Viewing Area

Diagnostics

NCR 7460 2x20 Customer Display
This chapter defines the character set and the supported commands.
The NCR 7460 2x20 Customer Display is an integrated line display
attached to the LPT2 parallel port of the terminal motherboard.
The characters are arranged in 2 rows of 20 characters. Each character
is a 5x7 dot matrix.
1 2 3
Power-Up Diagnostics occur soon after the hardware reset circuitry is
released, or when a Reset Display command is received from the host
software. When the hardware is powered down, all registers and
memory are lost. The display is not capable of any kind of power
recovery back to a previous state. As a part of the Power-Up
Diagnostics, the working registers and variables are initialized (set to
zero).
20
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