SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 443
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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24.13 Slow Clock Mode
24.13.1
Figure 24-28. Read/Write Cycles in Slow Clock Mode
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
A[23:0]
NWE
MCK
NCS
Slow Clock Mode Waveforms
1
SLOW CLOCK MODE WRITE
The SMC is able to automatically apply a set of “slow clock mode” read/write waveforms when
an internal signal driven by the Power Management Controller is asserted because MCK has
been turned to a very slow clock rate (typically 32kHz clock rate). In this mode, the user-pro-
grammed waveforms are ignored and the slow clock mode waveforms are applied. This mode is
provided so as to avoid reprogramming the User Interface with appropriate waveforms at very
slow clock rate. When activated, the slow mode is active on all chip selects.
Figure 24-28
chip selects.
Table 24-4.
Read Parameters
NRD_SETUP
NRD_PULSE
NCS_RD_SETUP
NCS_RD_PULSE
NRD_CYCLE
NWE_CYCLE = 3
1
Table 24-4
illustrates the read and write operations in slow clock mode. They are valid on all
Read and Write Timing Parameters in Slow Clock Mode
1
Duration (cycles)
indicates the value of read and write parameters in slow clock mode.
0
1
1
2
2
Write Parameters
NWE_SETUP
NWE_PULSE
NCS_WR_SETUP
NCS_WR_PULSE
NWE_CYCLE
A[23:0]
MCK
NRD
NCS
SLOW CLOCK MODE READ
1
NRD_CYCLE = 2
Duration (cycles)
1
1
1
0
3
3
SAM4S
SAM4S
443
443
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