User manual

Atmel SAM4S Xplained Pro [USER GUIDE]

Atmel-42075B-MCU-Atmel SAM4S Xplained Pro-USER GUIDE-03/2013

Pin on EXT4 SAM4S pin Function Shared functionality

43 PB5 TWCK1/SCL EXT3

44 PA0 WKUP0 EXT3

45 - -

46 PA15 PWML3 PIOD Interface header

47 PC28 GPIO

48 - VCC_P3V3

49 - VCC_P3V3 EXT2

50 - GND

4.1.3 Other headers

In addition to the “I/O extension headers” on page 11, SAM4S Xplained Pro has two additional headers

with spare signals that offers access to the I/O of the microcontroller which are otherwise not easily available

elsewhere or might be favourable to have collected toghether. All headers have a pitch of 2.54mm.

Table 4.5. SPARE SIGNALS header

Pin on header SAM4S pin Function Shared functionality

1 PA2 DATRG User button, SW0

2 PA9 PWMF10 EXT2

3 PA26 TI0A2 SD Card and PIOD Interface header

4 PA27 TI0B2 SD Card and PIOD Interface header

5 PA28 TCLK1 SD Card and PIOD Interface header

6 PA29 TCLK2 SD Card and PIOD Interface header

7 PA31 PCK2 SD Card and PIOD Interface header

8 PB0 RTCOUT0 EXT2

9 PB1 RTCOUT1 EXT2

10 PB13 DAC0

11 PB14 DAC1

12 - - GND

Table 4.6. PIOD INTERFACE header

Pin on header SAM4S pin Function Shared functionality

1 PA15 PIODCEN1 LCD connector

2 PA16 PIODCEN2 EXT3

3 PA23 PIODCCLK EXT1

4 PA24 PIODC0 EXT1

5 PA25 PIODC1 EXT1

6 PA26 PIODC2 SD Card and SPARE Signals header

7 PA27 PIODC3 SD Card and SPARE Signals header

8 PA28 PIODC4 SD Card and SPARE Signals header

9 PA29 PIODC5 SD Card and SPARE Signals header

10 PA30 PIODC6 SD Card

11 PA31 PIODC7 SD Card and SPARE Signals header

12 - - GND

4.2 Peripherals

4.2.1 NAND Flash

The SAM4S Xplained Pro kit has one 2Gb NAND Flash connected to the external bus interface of the SAM4S.