AT91RM3400-DK Atmel, AT91RM3400-DK Datasheet - Page 251
![KIT DEV FOR AT91RM3400](/photos/9/21/92145/at91rm3400-dk__bottom__sml.jpg)
AT91RM3400-DK
Manufacturer Part Number
AT91RM3400-DK
Description
KIT DEV FOR AT91RM3400
Manufacturer
Atmel
Series
AT91SAM Smart ARMr
Type
MCUr
Datasheets
1.AT91RM3400-DK.pdf
(461 pages)
2.AT91RM3400-DK.pdf
(2 pages)
3.AT91RM3400-DK.pdf
(25 pages)
Specifications of AT91RM3400-DK
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT91RM3400
Data Bus Width
32 bit
Interface Type
RS-232, USB
For Use With/related Products
AT91RM3400
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 251 of 461
- Download datasheet (6Mb)
Two-wire Interface (TWI)
Overview
Block Diagram
Application Block Diagram
1790A–ATARM–11/03
The Two-wire Interface (TWI) interconnects components on a unique two-wire bus, made up
of one clock line and one data line with speeds of up to 400 Kbits per second, based on a byte-
oriented transfer format. It can be used with any Atmel two-wire bus serial EEPROM. The TWI
is programmable as a master with sequential or single-byte access.
A configurable baud rate generator permits the output data rate to be adapted to a wide range
of core clock frequencies.
The main features of the TWI are:
•
•
•
Figure 79. Block Diagram
Figure 80. Application Block Diagram
Host with
Interface
Compatibility with standard two-wire serial memory
One, two or three bytes for slave address
Sequential read/write operations
TWI
TWCK
TWD
PMC
APB Bridge
AT24LC16
Slave 1
MCK
U1
Two-wire
Interface
Slave 2
AT24LC16
U2
Interrupt
TWI
LCD Controller
Slave 3
U3
PIO
AIC
AT91RM3400
R
TWCK
TWD
R
VDD
251
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