MSC1202Y2RHHT datasheet(69/92 Pages) TI1

69 / 92 page

MSC1200

MSC1201

MSC1202

SBAS317E − APRIL 2004 − REVISED MAY 2006

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Enable Interrupt Control (EICON)

Reset Value

SFR D8h

EAI

WDTI

40h

EAI

Enable Auxiliary Interrupt. The Auxiliary Interrupt accesses nine different interrupts which are masked and

bit 5

identified by SFR registers PAI (SFR A5h), AIE (SFR A6h), and AISTAT (SFR A7h).

0 = Auxiliary Interrupt disabled (default).

1 = Auxiliary Interrupt enabled.

Auxiliary Interrupt Flag. AI must be cleared by software before exiting the interrupt service routine, after the source

bit 4

of the interrupt is cleared. Otherwise, the interrupt occurs again. Setting AI in software generates an Auxiliary

Interrupt, if enabled.

0 = No Auxiliary Interrupt detected (default).

1 = Auxiliary Interrupt detected.

WDTI

Watchdog Timer Interrupt Flag. WDTI must be cleared by software before exiting the interrupt service routine.

bit 3

Otherwise, the interrupt occurs again. Setting WDTI in software generates a watchdog time interrupt, if enabled. The

Watchdog timer can generate an interrupt or reset. The interrupt is available only if the reset action is disabled in

HCR0.

0 = No Watchdog Timer Interrupt Detected (default).

1 = Watchdog Timer Interrupt Detected.

ADC Results Low Byte (ADRESL)

Reset Value

SFR D9h

LSB

00h

ADRESL

ADC Results Low Byte. This is the low byte of the ADC results.

bits 7−0

Reading from this register clears the ADC interrupt; however, AI in EICON (SFR D8) must also be cleared.

ADC Results Middle Byte (ADRESM)

Reset Value

SFR DAh

00h

ADRESM

ADC Results Middle Byte. This is the middle byte of the ADC results for the MSC1200/01 and the most significant

byte for the MSC1202.

bits 7−0

ADC Results High Byte (ADRESH)

Reset Value

SFR DBh

MSB

00h

ADRESH

ADC Results High Byte. This is the high byte and most significant byte of the ADC results for the MSC1200/01.

bits 7−0

This is a sign-extended (Bipolar mode) or zero-padded (Unipolar mode) byte for the MSC1202 (that is, all 0s for

positive ADC or unipolar results and all 1s for negative ADC results).

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