SAM3U2E Atmel Corporation, SAM3U2E Datasheet - Page 814

• Manufacturer Part Number: SAM3U2E
• Manufacturer: Atmel Corporation

Specifications of SAM3U2E

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 96 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 57
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device
• Spi: 5
• Twi (i2c): 2
• Uart: 5
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 36
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

814
814
SAM3U Series
SAM3U Series
Figure 37-5. SD Memory Card Bus Topology
The SD Memory Card bus includes the signals listed in
Table 37-4.
Notes:
Figure 37-6. SD Card Bus Connections with One Slot
Note:
When the HSMCI is configured to operate with SD memory cards, the width of the data bus can
be selected in the HSMCI_SDCR register. Clearing the SDCBUS bit in this register means that
the width is one bit; setting it means that the width is four bits. In the case of High Speed Multi-
Media cards, only the data line 0 is used. The other data lines can be used as independent
PIOs.
Pin
Number
1
2
3
4
5
6
7
8
9
1. I: input, O: output, PP: Push Pull, OD: Open Drain.
2. When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK,
When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK,
MCCDA to HSMCIx_CDA MCDAy to HSMCIx_DAy.
MCCDA to HSMCIx_CDA, MCDAy to HSMCIx_DAy.
Name
CD/DAT[3]
CMD
VSS1
VDD
CLK
VSS2
DAT[0]
DAT[1]
DAT[2]
SD Memory Card Bus Signals
MCDA0 - MCDA3
Type
I/O/PP
PP
S
S
I/O
S
I/O/PP
I/O/PP
I/O/PP
MCCDA
MCCK
(1)
9
1
2 3 4 5 6
Card detect/ Data line Bit 3
Data line Bit 0
Data line Bit 1 or Interrupt
Data line Bit 2
Description
Command/response
Supply voltage ground
Supply voltage
Clock
Supply voltage ground
SD CARD
7 8
Table
37-4.
SD CARD
HSMCI Pin Name
(Slot z)
MCDz3
MCCDz
VSS
VDD
MCCK
VSS
MCDz0
MCDz1
MCDz2
6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
(2)