Datasheet

AMC7823

SLAS453F –APRIL 2005–REVISED MARCH 2012

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Table 13. Analog Input Channel Range

STARTING CHANNEL ENDING CHANNEL

ECNVT CMODE ADC MODE [SA3:SA0] [EA3:EA0]

Any one from CH0 to

External trigger,

1 0 Any one of CH0 to CH8 CH8, but not less than

direct mode

[SA3:SA0]

Internal trigger,

0 CH0 only. SA3:SA0 = '0000' Any one

direct mode

Internal trigger,

1 CH0 only. SA3:SA0 = '0000' Any one

auto mode

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 Bit 0

MSB 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 LSB

ICH3 ICH2 ICH1 ICH0 ADC1 ADC1 ADC9 ADC8 ADC7 ADC6 ADC5 ADC4 ADC3 ADC2 ADC1 ADC0

1 0

ADC11–ADC0 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.

ICH3–ICH0 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.

Table 14. ADC Data-n Registers

ICH3 ICH2 ICH1 ICH0 ANALOG INPUT

0 0 0 0 CH0

0 0 0 1 CH1

0 0 1 0 CH2

0 0 1 1 CH3

0 1 0 0 CH4

0 1 0 1 CH5

0 1 1 0 CH6

0 1 1 1 CH7

1 0 0 0 CH8

Product Folder Link(s): AMC7823