Cypress CY7C67300 manual Interrupt 0 Polarity Select Bit Reserved, Interrupt 0 Enable Bit

Models: CY7C67300

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CY7C67300

Interrupt 0 Polarity Select (Bit 1)

Reserved

The Interrupt 0 Polarity Select bit selects the polarity for IRQ0.

Write all reserved bits with ’0’.

1: Sets IRQ0 to rising edge

 

0: Sets IRQ0 to falling edge

 

Interrupt 0 Enable (Bit 0)

 

The Interrupt 0 Enable bit enables or disables IRQ0. The GPIO

 

bit on the interrupt Enable register must also be set in order for

 

this for this interrupt to be enabled.

 

1: Enable IRQ0

 

0: Disable IRQ0

 

GPIO n Output Data Register [R/W]

GPIO 0 Output Data Register 0xC01E

GPIO 1 Output Data Register 0xC024

Table 79. GPIO n Output Data Register

Bit #

31/15

30/14

29/13

28/12

 

27/11

26/10

25/9

24/8

Field

 

 

 

 

Data...

 

 

 

Read/Write

R/W

R/W

R/W

R/W

 

R/W

R/W

R/W

R/W

Default

0

0

0

0

 

0

0

0

0

 

 

 

 

 

 

 

 

 

 

Bit #

23/7

22/6

21/5

20/4

 

19/3

 

18/2

17/1

16/0

Field

 

 

 

 

...Data

 

 

 

Read/Write

R/W

R/W

R/W

R/W

 

R/W

 

R/W

R/W

R/W

Default

0

0

0

0

 

0

 

0

0

0

Register Description

 

 

 

Data (Bits [15:0])

 

 

 

The GPIO n Output Data register controls the output data of the GPIO pins. The GPIO 0 Output Data register controls GPIO15 to GPIO0 while the GPIO 1 Output Data register controls GPIO31 to GPIO16. When read, this register reads back the last data written, not the data on pins configured as inputs (see Input Data Register).

GPIO n Input Data Register [R]

GPIO 0 Input Data Register 0xC020

GPIO 1 Input Data Register 0xC026

Table 80. GPIO n Input Data Register

The Data field[15:0] writes to the corresponding GPIO 15–0 or GPIO31–16 pins as output data.

Bit #

31/15

30/14

29/13

28/12

 

27/11

26/10

25/9

24/8

Field

 

 

 

 

Data...

 

 

 

Read/Write

R

R

R

R

 

R

R

R

R

Default

0

0

0

0

 

0

0

0

0

Bit #

23/7

22/6

21//5

20/4

 

19/3

18/2

17/1

16/0

Field

 

 

 

 

...Data

 

 

 

Read/Write

R

R

R

R

 

R

R

R

R

Default

0

0

0

0

 

0

0

0

0

Register Description

The GPIO n Input Data register reads the input data of the GPIO pins. The GPIO 0 Input Data register reads from GPIO15 to GPIO0 while the GPIO 1 Input Data register reads from GPIO31 to GPIO16.

Data (Bits [15:0])

The Data field[15:0] contains the voltage values on the corre- sponding GPIO15–0 or GPIO31–16 input pins.

Document #: 38-08015 Rev. *J

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Cypress CY7C67300 manual Interrupt 0 Polarity Select Bit Reserved, Interrupt 0 Enable Bit, Gpio n Output Data Register