Alternative format

In the alternatives format, the KL1501 is mapped with 4/6 bytes of input data and 4/6 bytes of output data.

Requirements

Word offset

High byte

Low byte

Complete evaluation: no
Motorola format: no
Word alignment: no

0

D0

Cnt-CB/SB

1

D2

D1

Requirements

Word offset

High byte

Low byte

Complete evaluation: no
Motorola format: yes
Word alignment: no

0

Cnt-CB/SB

D0

1

D1

D2

Requirements

Word offset

High byte

Low byte

Complete evaluation: yes
Motorola format: no
Word alignment: no

0

Cnt-CB/SB

CB/SB

1

Res.

D0

2

D2

D1

Requirements

Word offset

High byte

Low byte

Complete evaluation: yes
Motorola format: yes
Word alignment: no

0

D0

CB/SB

1

Res.

Cnt-CB/SB

2

D1

D2

Requirements

Word offset

High byte

Low byte

Complete evaluation: yes
Motorola format: no
Word alignment: yes

0

Res.

CB/SB

1

D0

Cnt-CB/SB

2

Res.

Res.

3

D2

D1

Requirements

Word offset

High byte

Low byte

Complete evaluation: yes
Motorola format: no
Word alignment: yes

0

Res.

CB/SB

1

Cnt-CB/SB

D0

2

Res.

Res.

3

D1

D2

Legend

Complete evaluation:

The terminal is mapped with control and status byte.

Motorola format

Motorola or Intel format can be set.

Word alignment

The terminal is positioned on a word boundary in the Bus Coupler.

CB

Control byte (appears in the process image of the outputs).

SB

Status byte (appears in the process image of the inputs).

Cnt-CB

Control byte in process data exchange.

Cnt-SB

Status byte in process data exchange.

D0

Data byte 0

D1

Data byte 1

D2

Data byte 2

Res.

This byte is assigned to the process data memory, although it has no function.