SAM3S1A Atmel Corporation, SAM3S1A Datasheet - Page 341

• Manufacturer Part Number: SAM3S1A
• Manufacturer: Atmel Corporation

Specifications of SAM3S1A

• Flash (kbytes): 64 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 64 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 34
• Ext Interrupts: 34
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 2
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1000
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• 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

21. SAM3S Boot Program
21.1
21.2
21.3
6500C–ATARM–8-Feb-11
Description
Hardware and Software Constraints
Flow Diagram
The SAM-BA
into the different memories of the product.
Note:
Table 21-1.
The Boot Program implements the algorithm in
Figure 21-1. Boot Program Algorithm Flow Diagram
The SAM-BA Boot program seeks to detect a source clock either from the embedded main oscil-
lator with external crystal (main oscillator enabled) or from a supported frequency signal applied
to the XIN pin (Main oscillator in bypass mode).
Peripheral
UART0
UART0
• SAM-BA Boot uses the first 2048 bytes of the SRAM for variables and stacks. The remaining
• USB Requirements:
• UART0 requirements: None
available size can be used for user's code.
11,289 MHz
12,000 MHz
16,000 MHz
18,432 MHz
– External Crystal or External Clock
1. must be 2500 ppm and 1.8V Square Wave Signal.
®
Device
Setup
Boot Program integrates an array of programs permitting download and/or upload
Pins Driven during Boot Program Execution
Pin
URXD0
UTXD0
Run SAM-BA Monitor
USB Enumeration
Successful ?
(1)
Yes
with frequency of:
Figure
21-1.
No
Run SAM-BA Monitor
Character # received
No
from UART0?
Yes
PIO Line
PA10
PA9
SAM3S
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