ST52F510 datasheet(42/106 Pages) STMICROELECTRONICS

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ST52F510/F513/F514

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5.6 Register Description

Interrupt Mask Register (INT_MASK)

Configuration Register 0 (00h) Read/Write

Reset Value: 0000 0000 (00h)

Bit 7: MSKPB Interrupt Mask Port B

0: Port B interrupt masked

1: Port B interrupt enabled

Bit 6: MSKPA Interrupt Mask Port A

0: Port A interrupt masked

1: Port A interrupt enabled

Bit 5: MSKI2C Interrupt Mask I2C Interface

0: I2C Interface interrupt masked

1: I2C Interface interrupt enabled

Bit 4: MSKSPI Interrupt Mask SPI

0: SPI interrupt masked

1: SPI interrupt enabled

Bit 3: MSKSCI Interrupt Mask SCI

0: SCI interrupt masked

1: SCI interrupt enabled

Bit 2: MSKT1 Interrupt Mask PWM/Timer 1

0: Pwm/Timer 1 interrupt masked

1: Pwm/Timer 1 interrupt enabled

Bit 1: MSKT0 Interrupt Mask Pwm/Timer 0

0: Pwm/Timer 0 interrupt masked

1: Pwm/Timer 0 interrupt enabled

Bit 0: MSKAD Interrupt Mask A/D Converter

0: A/D interrupt masked

1: A/D interrupt enabled

Interrupt Polarity Register (INT_POL)

Configuration Register 1 (01h) Read/Write

Reset Value: 0000 0000 (00h)

Bit 7-5: Not Used

Bit 4-3: See Timer 0 Registers Description

Bit 2: POLPB Port B Interrupt Polarity

0: The Port B interrupt is triggered on the

rising edge of the applied external signal.

1: The Port B interrupt is triggered on the

falling edge of the applied external signal.

Bit 1: POLPA Port A Interrupt Polarity

0: The Port A interrupt is triggered on the

rising edge of the applied external signal.

1: The Port A interrupt is triggered on the

falling edge of the applied external signal.

Bit 0: POLNMI Non Maskable Interrupt Polarity

0: The NMI is triggered on the rising edge of

the applied external signal.

1: The NMI is triggered on the falling edge of

the applied external signal.

High Priority Register (INT_PRL_H)

Configuration Register 2 (02h) Read/Write

Reset Value: 1111 1010 (0FAh)

Medium Priority Register (INT_PRL_M)

Configuration Register 3 (03h) Read/Write

Reset Value: 1100 0110 (0C6h)

MSKPB

MSKPA MSKI2C MSKSPI MSKSCI MSKT1

MSKT0

MSKAD

RESPOL STRPOL POLPB

POLPA POLNMI

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