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Registers

Figure 33. GPIO Bank 4 Interrupt Status Register (INTSTAT4)

31 16

Reserved

R-0

15 8

Reserved

R-0

7 6 5 4 3 2 1 0

Reserved STAT70 STAT69 STAT68 STAT67 STAT66 STAT65 STAT64

R-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0 R/W1C-0

LEGEND: R/W = Read/Write; R = Read only; W1C = Write 1 to clear bit (writing 0 has no effect); - n = value after reset

Table 16. GPIO Interrupt Status Register (INTSTAT n) Field Descriptions

Bit Field Value Description

31-16 STAT n Interrupt status of GPIO pin n. The STAT n bit is used to monitor pending GPIO interrupts on pin n of

GPIO bank 2 I + 1. This bit field returns the status of GPIO pins on GPIO banks 1 and 3. Write a 1 to the

STAT n bit to clear the STAT n bit; a write of 0 has no effect.

0 No pending interrupt on GPIO pin n.

1 Pending interrupt on GPIO pin n.

15-0 STAT n Interrupt status of GPIO pin n. The STAT n bit is used to monitor pending GPIO interrupts on pin n of

GPIO bank 2 I. This bit field returns the status of GPIO pins on GPIO banks 0, 2, and 4. Write a 1 to the

STAT n bit to clear the STAT n bit; a write of 0 has no effect.

0 No pending interrupt on GPIO pin n.

1 Pending interrupt on GPIO pin n.

SPRUE25 – December 2005 General-Purpose Input/Output (GPIO) 35

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Texas-instruments TMS320DM644x User Manual Page 35