Silex technology SX-560 manual 5 4 3 2 1

GPIO direction control

Integer read-only gpio.2

This is an integer representing a bit mask indicating which GPIO bits are configured for outputs. Only bits for which the GPIO bit mask is 1 are valid. A 1 indicates the GPIO bit is an output, a 0 indicates an input.

	7	6	5	4	3	2	1	0
	GPIO8 GPIO7 GPIO6 GPIO5 GPIO4 GPIO3 GPIO2 GPIO1
GPIO data
Integer	read-write	gpio.2

This is an integer representing a bit mask indicating the GPIO bits status. On a read, the current value of the input pins is returned. Output bits return the last value set. On a write, bits configured as outputs are set to the value given by the corresponding mask bit. For input bits, a write has no effect.

7 6 5 4 3 2 1 0

GPIO8 GPIO7 GPIO6 GPIO5 GPIO4 GPIO3 GPIO2 GPIO1

GPIO trigger mask

Integer read-only gpio.2

This value is an integer representing a 32 bit mask expressed in hex digits. The mask is encoded as follows:

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TRIG16

TRIG15

TRIG14

TRIG13

TRIG12

TRIG11

TRIG10

TRIG9

GPIO8

GPIO7

GPIO6

GPIO5

GPIO4

GPIO3

GPIO2

GPIO1

1 to 0

1 to 0

1 to 0

1 to 0

1 to 0

1 to 0

1 to 0

1 to 0

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TRIG8

TRIG7

TRIG6

TRIG5

TRIG4

TRIG3

TRIG2

TRIG1

GPIO8

GPIO7

GPIO6

GPIO5

GPIO4

GPIO3

GPIO2

GPIO1

0 to 1 0 to 1

0 to 1 0 to 1

0 to 1 0 to 1

0 to 1 0 to 1

A value of 1 indicates the corresponding GPIO trigger condition is enabled. A value of 0 indicates the correspon ding GPIO trigger condition is disabled. For example a hex value of 4 represents GPIO3 0 to 1 transition (TRIG3) is enabled as a trigger.

GPIO transmit string table index

Integer read-only gpio.5.1.1.n

This value is the index into the GPIO message table for trigger number n. For the SX-560, this always returns n as its value.

GPIO transmit string value

Octet-string read-only gpio.5.1.2.n

This item returns the GPIO transmit string for trigger number n, if a string is defined. The string may be defined even if the corresponding trigger is not currently enabled.

Page 60

Silex

Part Number 140-00192-100

Advanced Configuration