AMC7823_15 Datasheet, PDF (42/55 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL CIRCUIT

AMC7823
SLAS453F – APRIL 2005 – REVISED MARCH 2012
ECNVT
1
0
CMODE
0
0
1
Table 13. Analog Input Channel Range
ADC MODE
STARTING CHANNEL
[SA3:SA0]
External trigger,
direct mode
Any one of CH0 to CH8
Internal trigger,
direct mode
Internal trigger,
auto mode
CH0 only. SA3:SA0 = '0000'
CH0 only. SA3:SA0 = '0000'
ENDING CHANNEL
[EA3:EA0]
Any one from CH0 to
CH8, but not less than
[SA3:SA0]
Any one
Any one
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ADC Data-n Registers (n = 0, 1, 2, 3, 4, 5, 6, 7, 8) (Read-Only)
Nine ADC Data registers are available. The ADC Data-n Registers store the conversion results of the
corresponding analog channel-n. The ADC-8 Data Register is used for the on-chip temperature sensor. The
other registers are for external analog inputs. All ADC Data-n registers are formatted in the manner shown here.
Bit 15
MSB
ICH3
Bit 14
ICH2
Bit 13
ICH1
Bit 12
ICH0
Bit 11
ADC1
1
Bit 10
ADC1
0
Bit 9
ADC9
Bit 8
ADC8
Bit 7
ADC7
Bit 6
ADC6
Bit 5
ADC5
Bit 4
ADC4
Bit 3
ADC3
Bit 2
ADC2
Bit 1
ADC1
Bit 0
LSB
ADC0
ADC11–ADC0
ICH3–ICH0
Value of the conversion result. The data are updated when the conversion of the input
[EA3:EA0] finishes; see the ADC Operation section for details.
Analog Input Channel number
After power-on or reset, all bits are cleared to '0'.
All ADC Data-n Registers are read-only. Writing to the ADC Data-n registers does not cause any change.
Table 14 summarizes the ADC Data-n Registers.
ICH3
0
0
0
0
0
0
0
0
1
Table 14. ADC Data-n Registers
ICH2
0
0
0
0
1
1
1
1
0
ICH1
0
0
1
1
0
0
1
1
0
ICH0
0
1
0
1
0
1
0
1
0
ANALOG INPUT
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
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