SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 430
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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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Figure 24-14. Early Read Wait State: Write with No Hold Followed by Read with No Setup
• if the write controlling signal has no hold time and the read controlling signal has no setup
• in NCS write controlled mode (WRITE_MODE = 0), if there is no hold timing on the NCS
• in NWE controlled mode (WRITE_MODE = 1) and if there is no hold timing (NWE_HOLD =
time
signal and the NCS_RD_SETUP parameter is set to 0, regardless of the read mode
24-15). The write operation must end with a NCS rising edge. Without an Early Read Wait
State, the write operation could not complete properly.
0), the feedback of the write control signal is used to control address, data, and chip select
lines. If the external write control signal is not inactivated as expected due to load
capacitances, an Early Read Wait State is inserted and address, data and control signals are
maintained one more cycle. See
(Figure
A[23:0]
D[7:0]
NWE
MCK
NRD
24-14).
write cycle
no hold
Figure
Early Read
wait state
24-16.
no setup
read cycle
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
(Figure
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