Counter 1 data register, Counter 2 data register – National Instruments PC-LPM-16/PnP User Manual

Page 92

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Appendix D Register-Level Programming

PC-LPM-16/PnP User Manual

D-20

National Instruments Corporation

Counter 1 Data Register

Use the Counter 1 Data Register to load and read back contents of MSM82C53 counter 1.

Address:

Base address + 09 (hex)

Type:

Read-and-write

Word Size:

8-bit

Bit Map:

Bit

Name

Description

7–0

D<7..0>

A/D Conversion Data Bits 7 through 0—8-bit
counter 1 contents.

Counter 2 Data Register

Use the Counter 2 Data Register to load and read back contents of MSM82C53 counter 2.

Address:

Base address + 0A (hex)

Type:

Read-and-write

Word Size:

8-bit

Bit Map:

Bit

Name

Description

7–0

D<7..0>

A/D Conversion Data Bits 7 through 0—8-bit
counter 2 contents.

7

6

5

4

3

2

1

0

D7

D6

D5

D4

D3

D2

D1

D0

7

6

5

4

3

2

1

0

D7

D6

D5

D4

D3

D2

D1

D0

a.Book : l.Appendix D Page 20 Wednesday, November 20, 1996 6:36 PM

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