SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 393

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SAM4S16C

Manufacturer Part Number
SAM4S16C
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM4S16C

Flash (kbytes)
1024 Kbytes
Pin Count
100
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
79
Ext Interrupts
79
Usb Transceiver
1
Quadrature Decoder Channels
2
Usb Speed
Full Speed
Usb Interface
Device
Spi
3
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
1000
Analog Comparators
1
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
128
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
6
Output Compare Channels
6
Input Capture Channels
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
22. SAM4S Boot Program
22.1
22.2
22.3
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
Description
Hardware and Software Constraints
Flow Diagram
The SAM-BA Boot Program integrates an array of programs permitting download and/or upload
into the different memories of the product.
Note:
Table 22-1.
The Boot Program implements the algorithm in
Figure 22-1. 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).
If a clock is found from the two possible sources above, the boot program checks to verify that
the frequency is one of the supported external frequencies. If the frequency is one of the sup-
ported external frequencies, USB activation is allowed, else (no clock or frequency other than
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 1.2V Square Wave Signal.
Device
Setup
Pins Driven during Boot Program Execution
Pin
URXD0
UTXD0
Run SAM-BA Monitor
USB Enumeration
Successful ?
(1)
Yes
with frequency of:
Figure
22-1.
No
Run SAM-BA Monitor
Character # received
No
from UART0?
Yes
PIO Line
PA10
PA9
SAM4S
SAM4S
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