ATSAM3U2CA-CU Atmel, ATSAM3U2CA-CU Datasheet - Page 629
ATSAM3U2CA-CU
Manufacturer Part Number
ATSAM3U2CA-CU
Description
IC MCU 32BIT 128KB FLSH 100TFBGA
Manufacturer
Atmel
Series
SAM3Ur
Specifications of ATSAM3U2CA-CU
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
96MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
57
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
36K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 4x10b, 4x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TFBGA
Processor Series
ATSAM3x
Core
ARM Cortex M3
Data Bus Width
32 bit
Data Ram Size
36 KB
Interface Type
3xUSART, TWI, 4xSPI, Bus
Maximum Clock Frequency
96 MHz
Number Of Programmable I/os
57
Number Of Timers
8
Operating Supply Voltage
1.62 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
ATSAM3U-EK
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3U2CA-CU
Manufacturer:
PERICOM
Quantity:
3 186
Part Number:
ATSAM3U2CA-CU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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Figure 33-11. Master Write with One, Two or Three Bytes Internal Address and One Data Byte
Figure 33-12. Master Read with One, Two or Three Bytes Internal Address and One Data Byte
33.7.6.2
Figure 33-13. Internal Address Usage
6430D–ATARM–25-Mar-11
TWD
TWD
TWD
TWD
TWD
TWD
Three bytes internal address
Two bytes internal address
One byte internal address
Three bytes internal address
Two bytes internal address
One byte internal address
S
S
S
S
S
S
10-bit Slave Addressing
DADR
DADR
DADR
DADR
DADR
DADR
W
W
W
For a slave address higher than 7 bits, the user must configure the address size (IADRSZ) and
set the other slave address bits in the internal address register (TWI_IADR). The two remaining
Internal address bytes, IADR[15:8] and IADR[23:16] can be used the same as in 7-bit Slave
Addressing.
Example: Address a 10-bit device (10-bit device address is b1 b2 b3 b4 b5 b6 b7 b8 b9 b10)
Figure 33-13
the use of internal addresses to access the device.
1. Program IADRSZ = 1,
2. Program DADR with 1 1 1 1 0 b1 b2 (b1 is the MSB of the 10-bit address, b2, etc.)
3. Program TWI_IADR with b3 b4 b5 b6 b7 b8 b9 b10 (b10 is the LSB of the 10-bit
W
W
W
S
A
R
T
T
A
A
A
M
S
B
address)
Address
Device
IADR(23:16)
A
A
A
IADR(15:8)
IADR(7:0)
0
below shows a byte write to an Atmel AT24LC512 EEPROM. This demonstrates
IADR(23:16)
IADR(15:8)
S
B
IADR(7:0)
L
W
W
R
E
T
R
I
/
C
A
K
WORD ADDRESS
A
A
A
M
S
B
FIRST
IADR(15:8)
Sr
IADR(7:0)
A
A
A
DADR
A
C
K
IADR(15:8)
IADR(7:0)
WORD ADDRESS
DATA
SECOND
A
A
R
Sr
IADR(7:0)
A
S
B
A
A
A
L
A
C
K
DADR
IADR(7:0)
P
DATA
DATA
DATA
A
Sr
R
A
C
K
O
S
T
P
A
A
N
A
DADR
DATA
SAM3U Series
P
P
DATA
DATA
R
N
P
N
A
A
P
P
629
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