SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 349

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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
19.4.3.6
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
Calibration Bit
One error can be detected in the EEFC_FSR register after a programming sequence:
The status of GPNVM bits can be returned by the Enhanced Embedded Flash Controller
(EEFC). The sequence is:
For example, if the third bit of the first word read in the EEFC_FRR is set, then the third GPNVM
bit is active.
One error can be detected in the EEFC_FSR register after a programming sequence:
Note:
Calibration bits do not interfere with the embedded Flash memory plane.
It is impossible to modify the calibration bits.
The status of calibration bits can be returned by the Enhanced Embedded Flash Controller
(EEFC). The sequence is:
The 4/8/12 MHz Fast RC oscillator is calibrated in production. This calibration can be read
through the Get CALIB Bit command. The table below shows the bit implementation for each
frequency:
The RC calibration for 4 MHz is set to 1,000,000.
RC Calibration Frequency
8 MHz output
12 MHz output
• When the clear completes, the FRDY bit in the Flash Programming Status Register
• If the GPNVM bit number is greater than the total number of GPNVM bits, then the command
• Command Error: a bad keyword has been written in the EEFC_FCR register.
• Flash Error: at the end of the programming, the EraseVerify or WriteVerify test of the Flash
• Start the Get GPNVM bit command by writing the Flash Command Register with GGPB. The
• GPNVM bits can be read by the software application in the EEFC_FRR register. The first
• Command Error: a bad keyword has been written in the EEFC_FCR register.
• Issue the Get CALIB Bit command by writing the Flash Command Register with GCALB (see
• Calibration bits can be read by the software application in the EEFC_FRR register. The first
(EEFC_FSR) rises. If an interrupt has been enabled by setting the FRDY bit in EEFC_FMR,
the interrupt line of the NVIC is activated.
has no effect.
memory has failed.
FARG field is meaningless.
word read corresponds to the 32 first GPNVM bits, following reads provide the next 32
GPNVM bits as long as it is meaningful. Extra reads to the EEFC_FRR register return 0.
Table
word read corresponds to the 32 first calibration bits, following reads provide the next 32
calibration bits as long as it is meaningful. Extra reads to the EEFC_FRR register return 0.
Access to the Flash in read is permitted when a set, clear or get GPNVM bit command is
performed.
19-2). The FARG field is meaningless.
EEFC_FRR Bits
[28 - 22]
[38 - 32]
SAM4S
SAM4S
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