Datasheet

7
11096AS–ATARM–4-Oct-11
SAM9N12
When “Reset State” is stated, the configuration is defined by the “Reset State” column of the Pin Description table.
LCDDEN LCD Data Enable Output
LCDPWM LCD Contrast Control Output
LCDDISP LCD Display Enable Output
Analog-to-Digital Converter - ADC
AD0
XP_UL
Top/Upper Left Channel Analog
AD1
XM_UR
Bottom/Upper Right Channel Analog
AD2
YP_LL
Right/Lower Left Channel Analog
AD3
YM_SENSE
Left/Sense Channel Analog
AD4
LR
Lower Right Channel Analog
AD5-AD11 7 Analog Inputs Analog
ADTRG ADC Trigger Input
ADVREF ADC Reference Analog
Table 3-1. Signal Description List (Continued)
Signal Name Function Type Active Level
Table 3-2. SAM9N12 I/O Type Description
I/O Type Signal Name
Voltag e
Range
Analog Pull-up
Pull-up
Value
(Ohm)
Pull-down
Pull-down
Value
(Ohm)
Schmitt
Trigger
GPIO all PIO lines except following 1.65-3.6V switchable 50-100K switchable 50-100K switchable
GPIO_CLK MCICK, SPI0SPCK, SPI1SPCK 1.65-3.6V switchable 50-100K switchable 50-100K switchable
GPIO_CLK2 LCDDOTCK 1.65-3.6V switchable 50-100K switchable 50-100K switchable
GPIO_ANA ADx, GPADx 3.0-3.6V I switchable 50-100K switchable
EBI
all Data lines (Input/output)
except the following
1.65-1.95V,
3.0-3.6V
switchable 50-100K switchable 50-100K
EBI_O
all Address and control lines
(output only) except the following
1.65-1.95V,
3.0-3.6V
Reset State 50-100K Reset State 50-100K
EBI_CLK SDCK, #SDCK
1.65-1.95V,
3.0-3.6V
RSTJTAG
NRST, NTRST, BMS, TCK, TDI,
TMS, TDO, RTCK
3.0-3.6V Reset State 100K Reset State 100K Reset State
SYSC WKUP, SHDN, JTAGSEL, SHDN 1.65-3.6V Reset State 100k Reset State 15K Reset State
VBG VBG 0.9-1.1V I
USBFS HDP, HDM, DDP, DDM 3.0-3.6V I/O
CLOCK XIN, XOUT, XIN32, XOUT32 1.65-3.6V I/O