at91sam9g45 ATMEL Corporation, at91sam9g45 Datasheet - Page 10

• Manufacturer Part Number: at91sam9g45
• Description: At91 Arm Thumb-based Microcontrollers
• Manufacturer: ATMEL Corporation

Table 3-1.
Notes:
10
Signal Name
AD3Y
GPAD4-GPAD7
TSADTRG
TSADVREF
M
1. Refer to peripheral multiplexing tables in
2. When configured as an input, the NRST pin enables asynchronous reset of the device when asserted low. This allows con-
3. Programming of this pull-up resistor is performed independently for each I/O line through the PIO Controllers. After reset, all
AT91SAM9G45
nection of a simple push button on the NRST pin as a system-user reset.
the I/O lines default as inputs with pull-up resistors enabled, except those which are multiplexed with the External Bus Inter-
face signals that require to be enabled as Peripheral at reset. This is explicitly indicated in the column “Reset State” of the
peripheral multiplexing tables.
Signal Description List (Continued)
Analog input channel 3 or
Touch Screen Left channel
Analog Inputs
ADC Trigger
ADC Reference
Function
Section 9.4 “Peripheral Signals Multiplexing on I/O Lines”
Analog
Analog
Input
Analog
Type
Active
Level
Reference
VDDANA
VDDANA
VDDANA
VDDANA
Voltage
Comments
Multiplexed with AD3
for these signals.
6438CS–ATARM–13-Oct-09