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Chapter 4 Register Map and Descriptions
©
National Instruments Corporation 4-67 AT-MIO-16X User Manual
Am9513A Status Register
The Am9513A Status Register contains information about the output
pin status of each counter in the Am9513A.
Address: Base address + 16 (hex)
Type: Read-only
Word Size: 16-bit
Bit Map:
Bit Name Description
15-6 X Don’t care bits.
5-1 OUT<5..1> Each of these five bits returns the logic
state of the associated counter output pin.
For example, if OUT4 is set, then the
output pin of Counter 4 is at a logic high
state.
0 BYTEPTR This bit represents the state of the
Am9513A Byte Pointer Flip-Flop. This
bit has no significance for AT-MIO-16X
operation because the Am9513A should
always be used in 16-bit mode on the
AT-MIO-16X.
76 5
X
43
OUT4
2
OUT2
10
OUT1X OUT5 BYTEPTROUT3
15
MSB
LSB
14 13
X
12 11
X
10
X
98
XXX XX