BLUENRG-2 datasheet(118/190 Pages) STMICROELECTRONICS

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Functional details

BlueNRG-2

118/190

DocID030675 Rev 2

Address

offset

Name

Reset

Description

0x30

MODE1

0x00000110

Select mode for IO8 to IO15.

000b: GPIO mode.

001b: Serial1 mode.

100b: Serial0 mode.

101b: Serial2 mode.

Refer to the detailed description below.

0x34

MODE2

0x00000000

Select mode for IO16 to IO23.

000b: GPIO mode.

001b: Serial1 mode.

100b: Serial0 mode.

101b: Serial2 mode.

Refer to the detailed description below.

0x38

MODE3

0x00000000

Select mode for IO24 to IO25.

000b: GPIO mode.

001b: Serial1 mode.

100b: Serial0 mode.

101b: Serial2 mode.

Refer to the detailed description below.

0x3C

DATS

0x00000000

Set some bits of DATA when in GPIO mode without

affecting the others (1 bit per IO).

0: no effect.

1: set at 1 the bit

0x40

DATC

0x00000000

Clear some bits of DATA when in GPIO mode without

affecting the others (1 bit per IO)

0: no effect.

1: clear at 0 the bit

0x44

MFTX

0x00000000

Select the IO to be used as capture input for the

MFTX timers. Refer to the detailed description below.

Table 139: GPIO

– DATA register description: address offset GPIO_BASE_ADDR+0x00

Bit

Field

name

Reset

Description

31:0

DATA

0x00000000

IO0 to IO25 data value.

Writing to a bit will drive the written value on the

corresponding IO when it is configured in GPIO mode and the

output direction. Reading a bit indicates the pin value.

Table 140: GPIO

– OEN register description: address offset GPIO_BASE_ADDR+0x04

Bit

Field name

Reset

Description

31:0

OEN

0x00000000

GPIO output enable register (1 bit per GPIO).



0: Input mode



1: Output mode

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