Programmer (HHP) User guide

Chapter 8

Using Basic Instructions

8–23

Addressing Structure

Address bits and words using the format shown below.

Format Explanation

C Counter file

Element

number

Ranges from 0 – 39. These are 3-word elements.

See figure on page 8–21.

Ce.s/b

Subelement delimiter

C./b

s Subelement PRE or ACC

/ Bit delimiter

b Bit number

Important: If assigned to a high-speed counter instruction, C0 is not

available as an address for any other counter instructions. For

more information on high-speed counter instructions, see

chapter 14.

Addressing Examples

• C0/CU Count up enable bit

• C0/CD Count down enable bit

• C0/DN Done bit

• C0/OV Overflow bit

• C0/UN Underflow bit

• C0/UA Update accumulator bit

• C0.PRE Preset value of the counter

• C0.ACC Accumulator value of the counter

• C0.PRE/0 Bit 0 of the preset value

• C0.ACC/0 Bit 0 of the accumulated value