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Example 1: Register Description Mnemonic
REGISTER DESCRIPTIONS
Interrupt Register (address 0x00)
The Interrupt Register contains the 12 interrupt flags together with the acknowledge flags. If an interrupt occurs
(that is, when the output of the comparator filter is above the high level threshold or below the low level
threshold, or when one of the modulators is not functional), the appropriate interrupt flag is set (if enabled). An
interrupt flag is reset when the Interrupt Register is read and the corresponding interrupt source is no longer
active. The acknowledge bits are reset when the corresponding data register is read.
Table 13
describes the
Interrupt Register.
AMC1210
SBAS372A–APRIL 2006–REVISED OCTOBER 2006
Bit 8
Bit 9
Bit 10
The bit position in the
register.
The name of the register
bit. A '–' means
Not Used
and therefore a write to
such a bit position will get
lost.
The digit is the reset value.
Indicates if the bit position
is a read-only (R), readable
and writable (RW) or
write-only (W).
CS1
–
SHS
'1'
W
'0'
R
'0'
RW
This section describes the functionality of each register and its corresponding bits.
Table 13. Interrupt Register
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
AF4
AF3
AF2
AF1
MF4
MF3
MF2
MF1
IFL4
IFH4
IFL3
IFH3
IFL2
IFH2
IFL1
IFH1
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
'0'
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
BIT POSITION
15
BIT
AF4
DESCRIPTION
Acknowledge flag for Filter 4.
0: No new data available for Filter 4
1: New data available for Filter 4
Acknowledge flag for Filter 3.
0: No new data available for Filter 3
1: New data available for Filter 3
Acknowledge flag for Filter 2.
0: No new data available for Filter 2
1: New data available for Filter 2
Acknowledge flag for Filter 1.
0: No new data available for Filter 1
1: New data available for Filter 1
Modulator failure flag for Filter 4.
0: Modulator is operating normally for Filter 4
1: Modulator failure for Filter 4
Modulator failure flag for Filter 3.
0: Modulator is operating normally for Filter 3
1: Modulator failure for Filter 3
Modulator failure flag for Filter 2.
0: Modulator is operating normally for Filter 2
1: Modulator failure for Filter 2
Modulator failure flag for Filter 1.
0: Modulator is operating normally for Filter 1
1: Modulator failure for Filter 1
14
AF3
13
AF2
12
AF1
11
MF4
10
MF3
9
MF2
8
MF1
27
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