NRF52810-QCAA-R7 datasheet(411/483 Pages) NORDIC

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Peripherals

Bit number

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A

Reset 0x00000000

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

RW Field

Value Id

Value

Description

RW CC

Capture/Compare value

Only the number of bits indicated by BITMODE will be used

by the TIMER.

6.23 TWIM — I2C compatible two-wire interface master

with EasyDMA

TWI master with EasyDMA (TWIM) is a two-wire half-duplex master which can communicate with multiple

slave devices connected to the same bus

Listed here are the main features for TWIM:

• I2C compatible

• 100 kbps, 250 kbps, or 400 kbps

• Support for clock stretching (non I2C compliant)

• EasyDMA

The two-wire interface can communicate with a bi-directional wired-AND bus with two lines (SCL, SDA).

The protocol makes it possible to interconnect up to 127 individually addressable devices. TWIM is not

compatible with CBUS.

The GPIOs used for each two-wire interface line can be chosen from any GPIO on the device and are

independently configurable. This enables great flexibility in device pinout and efficient use of board space

and signal routing.

SDA

RXD-1

TXD+1

EasyDMA

RXD.PTR

TXD.PTR

buffer[0]

buffer[1]

buffer[RXD.MAXCNT-1]

RAM

buffer[0]

buffer[1]

buffer[TXD.MAXCNT-1]

PSEL.SDA

GPIO

PSEL.SCK

TWIM

TXD buffer

RXD buffer

SCL

Figure 106: TWI master with EasyDMA

4430_161 v1.0

411

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