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Chapter 4
Am9513A Command Registers
The Am9513A Command Registers control the overall operation of the Am9513A
Counter/Timer and selection of the internal registers that are accessed through the Am9513A
Data Registers.
Address:
Base address + 01 (hex) for Am9513A STC A
Base address + 03 (hex) for Am9513A STC B
Type:
Write-only
Word Size:
8-bit register, 8-bit port
Bit Map:
7
6
C7
C6
Bit
Name
7-0
C<7..0>
© National Instruments Corporation
5
4
C5
C4
Description
These eight bits are loaded into the Am9513A Command Register.
See Appendix C, Am9513A Data Sheet, for detailed bit
descriptions of the Am9513A Command Registers.
4-5
3
2
C3
C2
Programming
1
0
C1
C0
PC-TIO-10 User Manual
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