AT32UC3A464S Atmel Corporation, AT32UC3A464S Datasheet - Page 234

• Manufacturer Part Number: AT32UC3A464S
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A464S

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: AES
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

16.8.3
Register Name:
Access Type:
Offset:
Reset Value:
• TXSR: Exit Self Refresh to Active Delay
• TRAS: Active to Precharge Delay
• TRCD: Row to Column Delay
• TRP: Row Precharge Delay
• TRC: Row Cycle Delay
• TWR: Write Recovery Delay
• DBW: Data Bus Width
32072G–11/2011
DBW
31
23
15
7
Reset value is eight cycles.
This field defines the delay between SCKE set high and an Activate command in number of cycles. Number of cycles is
between 0 and 15.
Reset value is five cycles.
This field defines the delay between an Activate command and a Precharge command in number of cycles. Number of cycles is
between 0 and 15.
Reset value is two cycles.
This field defines the delay between an Activate command and a Read/Write command in number of cycles. Number of cycles
is between 0 and 15.
Reset value is three cycles.
This field defines the delay between a Precharge command and another command in number of cycles. Number of cycles is
between 0 and 15.
Reset value is seven cycles.
This field defines the delay between a Refresh and an Activate Command in number of cycles. Number of cycles is between 0
and 15.
Reset value is two cycles.
This field defines the Write Recovery Time in number of cycles. Number of cycles is between 0 and 15.
Reset value is 16 bits.
0: Reserved.
1: Data bus width is 16 bits.
Configuration Register
30
22
14
6
CR
Read/Write
0x08
0x852372C0
TRCD
TXSR
TRC
CAS
29
21
13
5
NB
28
20
12
4
27
19
11
3
NR
26
18
10
2
TRAS
TWR
TRP
25
17
9
1
NC
24
16
8
0
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