SAM7S16 Atmel Corporation, SAM7S16 Datasheet - Page 678
SAM7S16
Manufacturer Part Number
SAM7S16
Description
Manufacturer
Atmel Corporation
Specifications of SAM7S16
Flash (kbytes)
16 Kbytes
Pin Count
48
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
21
Ext Interrupts
21
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
2
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
4
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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40.13.3
40.13.3.1
40.13.3.2
40.13.3.3
40.13.4
40.13.4.1
40.13.5
40.13.5.1
678
SAM7S Series
Pulse Width Modulation Controller (PWM)
Real Time Timer (RTT)
USART: Universal Synchronous Asynchronous Receiver Transmitter
PWM: Update when PWM_CCNTx = 0 or 1
PWM: Update when PWM_CPRDx = 0
PWM: Counter Start Value
RTT: Possible Event Loss when Reading RTT_SR
USART: DCD is active High instead of Low
If the Channel Counter Register value is 0 or 1, the Channel Period Register or Channel Duty
Cycle Register is directly modified when writing the Channel Update Register.
Check the Channel Counter Register before writing the update register.
When Channel Period Register equals 0, the period update is not operational.
Do not write 0 in the period register.
In left aligned mode, the first start value of the counter is 0. For the other periods, the counter
starts at 1.
None.
If an event (RTTINC or ALMS) occurs within the same slow clock cycle during which the
RTT_SR is read, the corresponding bit might be cleared. This can lead to the loss of this event.
The software must handle the RTT event as an interrupt and should not poll RTT_SR.
The DCD signal is active at High level in the USART Modem Mode.
DCD should be active at Low level.
Add an inverter.
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround:
Problem Fix/Workaround
6175L–ATARM–28-Jul-11
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