RM48L930 datasheet(112/147 Pages) TI1

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RM48L930

RM48L730

RM48L530

SPNS176

– SEPTEMBER 2011

www.ti.com

•

Programmable magnitude threshold interrupt for each group for any one channel

•

Option to read either 8-bit, 10-bit or 12-bit values from memory regions

•

Single or continuous conversion modes

•

Embedded self-test

•

Embedded calibration logic

•

Enhanced power-down mode

– Optional feature to automatically power down ADC core when no conversion is in progress

•

External event pin (ADEVT) programmable as general-purpose I/O

5.2.2

Event Trigger Options

The ADC module supports 3 conversion groups: Event Group, Group1 and Group2. Each of these 3

groups can be configured to be hardware event-triggered. In that case, the application can select from

among 8 event sources to be the trigger for a group's conversions.

5.2.2.1

Default MIBADC Event Trigger Hookup

Table 5-3. MIBADC Event Trigger Hookup

Event #

Source Select Bits For G1, G2 Or Event

Trigger

(G1SRC[2:0], G2SRC[2:0] or EVSRC[2:0])

000

ADEVT

001

HET[8]

010

HET[10]

011

RTI compare 0 interrupt

100

HET[12]

101

HET[14]

110

GIOB[0]

111

GIOB[1]

NOTE

For ADEVT, HET and GIOB trigger sources, the connection to the MibADC1 module trigger

input is made from the output side of the input buffer. This way, a trigger condition can be

generated either by configuring the function as output onto the pad, or by driving the function

from an external trigger source as input.

NOTE

For the RTI compare 0 interrupt source, the connection is made directly from the output of

the RTI module. That is, the interrupt condition can be used as a trigger source even if the

actual interrupt is not signaled to the CPU.

5.2.2.2

Alternate MIBADC2 Event Trigger Hookup

Table 5-4. Alternate MIBADC2 Event Trigger Hookup

Event #

Source Select Bits for G1, G2 or Event

Trigger

(G1SRC[2:0], G2SRC[2:0] or EVSRC[2:0])

000

AD2EVT

001

N2HET2[5]

010

N2HET1[27]

011

RTI compare 0

100

N2HET1[17]

101

N2HET1[19]

112

Peripheral Information and Electrical Specifications

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