AMC1210_14 Datasheet, PDF (28/54 Pages) Texas Instruments – Quad Digital Filter for 2nd-Order Delta-Sigma Modulator

AMC1210
SBAS372D – APRIL 2006 – REVISED MAY 2009.............................................................................................................................................................. www.ti.com
All control parameters are stored in the register map. Additionally, the status of the AMC1210 is read out through
the register map. The mnemonic in the succeeding register description is given in Example 1.
Example 1: Register Description Mnemonic
Bit 8
Bit 9
CS1
–
'1'
'0'
W
R
Bit 10
SHS
'0'
RW
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).
REGISTER DESCRIPTIONS
This section describes the functionality of each register and its corresponding bits.
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interrupt flag is reset when the Interrupt Register is read and the corresponding interrupt source is no longer
active.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.
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
14
13
12
11
10
9
BIT
AF4
AF3
AF2
AF1
MF4
MF3
MF2
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
28
Submit Documentation Feedback
Product Folder Link(s): AMC1210
Copyright © 2006–2009, Texas Instruments Incorporated