SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 427
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SAM4S16C
Manufacturer Part Number
SAM4S16C
Description
Manufacturer
Atmel Corporation
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
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24.8.5
24.8.6
Table 24-2.
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
Coded Value
setup [5:0]
pulse [6:0]
cycle [8:0]
Write Protected Registers
Coding Timing Parameters
Coding and Range of Timing Parameters
Number of Bits
To prevent any single software error that may corrupt SMC behavior, the registers listed below
can be write-protected by setting the WPEN bit in the SMC Write Protect Mode Register
(SMC_WPMR).
If a write access in a write-protected register is detected, then the WPVS flag in the SMC Write
Protect Status Register (SMC_WPSR) is set and the field WPVSRC indicates in which register
the write access has been attempted.
The WPVS flag is automatically reset after reading the SMC Write Protect Status Register
(SMC_WPSR).
List of the write-protected registers:
All timing parameters are defined for one chip select and are grouped together in one
SMC_REGISTER according to their type.
The SMC_SETUP register groups the definition of all setup parameters:
• NRD_SETUP, NCS_RD_SETUP, NWE_SETUP, NCS_WR_SETUP
The SMC_PULSE register groups the definition of all pulse parameters:
• NRD_PULSE, NCS_RD_PULSE, NWE_PULSE, NCS_WR_PULSE
The SMC_CYCLE register groups the definition of all cycle parameters:
• NRD_CYCLE, NWE_CYCLE
Table 24-2
•
•
•
•
6
7
9
Section 24.15.1 ”SMC Setup Register”
Section 24.15.2 ”SMC Pulse Register”
Section 24.15.3 ”SMC Cycle Register”
Section 24.15.4 ”SMC MODE Register”
shows how the timing parameters are coded and their permitted range.
256 x cycle[8:7] + cycle[6:0]
128 x setup[5] + setup[4:0]
256 x pulse[6] + pulse[5:0]
Effective Value
Coded Value
0 ≤ ≤ 127
0 ≤ ≤ 31
0 ≤ ≤ 63
Permitted Range
Effective Value
0 ≤ ≤ 256+127
0 ≤ ≤ 512+127
0 ≤ ≤ 768+127
0 ≤ ≤ 128+31
0 ≤ ≤ 256+63
SAM4S
SAM4S
427
427
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