SAM3S ATMEL [ATMEL Corporation], SAM3S Datasheet - Page 6

• Manufacturer Part Number: SAM3S
• Description: ARM-based Flash MCU
• Manufacturer: ATMEL [ATMEL Corporation]

3. Signal Description
Table 3-1.
6
Signal Name
VDDIO
VDDIN
VDDOUT
VDDPLL
VDDCORE
GND
XIN
XOUT
XIN32
XOUT32
PCK0 - PCK2
TCK/SWCLK
TDI
TDO/TRACESWO
TMS/SWDIO
JTAGSEL
ERASE
NRST
TST
SAM3S Summary
Signal Description List
Function
Peripherals I/O Lines and USB transceiver
Power Supply
Voltage Regulator Input, ADC, DAC and
Analog Comparator Power Supply
Voltage Regulator Output
Oscillator and PLL Power Supply
Power the core, the embedded memories
and the peripherals
Ground
Main Oscillator Input
Main Oscillator Output
Slow Clock Oscillator Input
Slow Clock Oscillator Output
Programmable Clock Output
Test Clock/Serial Wire Clock
Test Data In
Test Data Out / Trace Asynchronous Data
Out
Test Mode Select /Serial Wire Input/Output
JTAG Selection
Flash and NVM Configuration Bits Erase
Command
Synchronous Microcontroller Reset
Test Select
Table 3-1
gives details on the signal names classified by peripheral.
Serial Wire/JTAG Debug Port - SWJ-DP
Clocks, Oscillators and PLLs
Power Supplies
Flash Memory
Reset/Test
Input / I/O
Ground
Output
Output
Output
Output
Power
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Input
Input
I/O
Active
Level
High
High
Low
reference Comments
Voltage
VDDIO
VDDIO
VDDIO
VDDIO
1.62V to 3.6V
1.8V to 3.6V
1.8V Output
1.62 V to 1.95V
1.62V to 1.95V
Reset State:
- PIO Input
- Internal Pull-up disabled
- Schmitt Trigger enabled
Reset State:
- PIO Input
- Internal Pull-up enabled
- Schmitt Trigger enabled
Reset State:
- SWJ-DP Mode
- Internal pull-up disabled
- Schmitt Trigger enabled
Permanent Internal
pull-down
Reset State:
- Erase Input
- Internal pull-down enabled
- Schmitt Trigger enabled
Permanent Internal
pull-up
Permanent Internal
pull-down
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