at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 260
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
at91rm3400
Manufacturer Part Number
at91rm3400
Description
Atmel Advanced At91 Arm Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT91RM3400.pdf
(461 pages)
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TWI Master Mode Register
Register Name:
Address Type:
• IADRSZ: Internal Device Address Size
• MREAD: Master Read Direction
0 = Master write direction.
1 = Master read direction.
• DADR: Device Address
The device address is used in Master Mode to access slave devices in read or write mode.
260
31
23
15
–
–
–
7
–
0
0
1
1
AT91RM3400
IADRSZ[9:8]
30
22
14
TWI_MMR
Read/write
–
–
6
–
0
1
0
1
No internal device address
One-byte internal device address
Two-byte internal device address
Three-byte internal device address
29
21
13
–
–
5
–
MREAD
28
20
12
–
4
–
DADR
27
19
11
–
–
3
–
26
18
10
–
–
2
–
25
17
–
9
1
–
IADRSZ
1790A–ATARM–11/03
24
16
–
8
0
–
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