AS7000 datasheet(76/92 Pages) AMSCO

tên linh kiện	AS7000

Giải thích chi tiết về linh kiện	The AS7000 device provides a flexible analog front end for light sensing applications

PDF	92 Pages

Scroll/Zoom	100%

nhà sản xuất	AMSCO [ams AG]

Trang chủ	http://www.ams.com

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Page 76

ams Datasheet

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[v1-12] 2018-Feb-26

AS7000 − Detailed Description

GPIO, SWD and Security Registers

Figure 97:

GPIO_DATA

Note(s):

1. The upper 4 bits are routed to the LED pins. This way the software can output data conveniently and quickly. The AFE module has

to be turned ON and the LED have to be enabled for this to work.

Figure 98:

GPIO_OE

Figure 99:

GPIO_WMASK

0x00: GPIO_DATA

Field

Name

Rst

Type

Description

12:0

gpio_d

R_PUSH

Read/write pin data directly. A read always returns the

value at the pin. (1)

0x04: GPIO_OE

Field

Name

Rst

Type

Description

8:0

gpio_oe

R_PUSH

Output enable (1=output 0=input)

0x08: GPIO_WMASK

Field

Name

Rst

Type

Description

8:0

gpio_wmask

0x1ff

All subsequent writes to GPIO_DATA and GPIO_OE will affect

only those bits that are asserted in this mask register. This

way a driver can set and clear bits with one access without

affecting any other bits. This can be used for bit banging

implementations of serial protocols.

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