Atmel SAM4S Xplained Pro Starter and Evaluation Kit ATSAM4S-XPRO ATSAM4S-XPRO Data Sheet
Product codes
ATSAM4S-XPRO
Atmel SAM4S Xplained Pro [USER GUIDE]
Atmel-42075B-MCU-Atmel SAM4S Xplained Pro-USER GUIDE-03/2013
15
Table 4.7. NAND Flash connections
SAM4S pin
Function
NAND Flash
function
Shared functionality
PC0
D0
IO0
LCD connector
PC1
D1
IO1
LCD connector
PC2
D2
IO2
LCD connector
PC3
D3
IO3
LCD connector
PC4
D4
IO4
LCD connector
PC5
D5
IO5
LCD connector
PC6
D6
IO6
LCD connector
PC7
D7
IO7
LCD connector
PC9
NANDOE
RE (active low)
PC10
NANDWE
WE (active low)
PC13
GPIO
R (active high)/ B
(active low)
PC14
NCS[0]
CE (active low)
PC16
NANDALE
ALE (active low)
PC17
NANDCLE
CLE
4.2.2
SD Card connector
The SAM4S Xplained Pro kit has one SD card connector which is connected to High Speed Multimedia Card
Interface (HSMCI) of the SAM4S
Table 4.8. SD Card connections
SAM4S pin
Function
SD Card function
Shared functionality
PA26
MCDA2
DAT2
SPARE Signal and PIOD Interface
headers
PA27
MCDA3
DAT3
SPARE Signal and PIOD Interface
headers
PA28
MCCDA
CMD
SPARE Signal and PIOD Interface
headers
PA29
MCCK
CLK
SPARE Signal and PIOD Interface
headers
PA30
MCDA0
DAT0
PIOD Interface header
PA31
MCDA1
DAT1
SPARE Signal and PIOD Interface
headers
PC12
GPIO
Card Detect
4.2.3
Crystals
The SAM4S Xplained Pro kit contains two crystals that can be used as clock sources for the SAM4S device.
Each crystal has a cut-strap next to it that can be used to measure the oscillator safety factor. This is done by
cutting the strap and adding a resistor across the strap. More information about oscillator allowance and safety
1
.
Table 4.9. External 32.768kHz crystals
Pin on SAM4S
Function
PA49
XIN32
PA48
XOUT32
1