BLUENRG-2 datasheet(146/190 Pages) STMICROELECTRONICS

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Functional details

BlueNRG-2

146/190

DocID030675 Rev 2

Bit

Field name

Reset

Description

TIC

0x0

RTC timer interrupt clear register bit. Clears the RTC timer

interrupt TINTR.

0: No effect.

1: Clears the interrupt.

31:2

RESERVED

0x0

RESERVED

Table 191: RTC

– TDR register description: address offset RTC_BASE_ADDR+0x2C

Bit

Field name

Reset

Description

31:0

TDR

0xFFFFFFFF

RTC time load value.

Table 192: RTC - TCR register description: address offset RTC_BASE_ADDR+0x30

Bit

Field name

Reset

Description

0x0

RTC Timer one shot count.

0: Periodic mode (default). When reaching zero, the

RTC timer raises its interrupt and is reloaded from the

LD content.

1: One-shot mode. When reaching zero, the RTC timer

raise its interrupt and stops.

0x0

RTC Timer enable bit.

0: The RTC timer is stopped on the next CLK32K cycle.

1: The RTC timer is enabled on the next CLK32K cycle.

When the RTC timer is stopped, the content of the

counter is frozen. A read returns the value of the EN bit.

This bit set by hardware when the TLR register is written

to while the counter is stopped. When the device is

active, this bit is cleared by hardware when the counter

reaches zero in one-shot mode.

0x0

RTC Timer self-start bit. When written to 1b, each write

in a load register or a pattern will set EN to 1b, so, start

the counter in the next CLK32K cycle.

RESERVED

0x0

RESERVED

10:4

0x0

RTC Timer Pattern size. Number of pattern bits crossed

by the pointer. It defines the useful pattern size.

CLK

0x0

RTC Timer clock.

0: The RTC timer is clocked by CLK32K.

1: The RTC timer is clocked by the trimmed clock.

BYPASS_GATED

0x0

Enable or disable the internal clock gating:

0: The internal clock gating is activated.

1: No clock gating, clock is always enabled.

31:13

RESERVED

0x0

RESERVED

Table 193: RTC

– TLR1 register description: address offset RTC_BASE_ADDR+0x34

Bit

Field name

Reset

Description

31:0

TLR1

0x00000000

RTC timer first load value.

BLUENRG-2 Datasheet(PDF) 146 Page - STMicroelectronics

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