at91sam9g45 ATMEL Corporation, at91sam9g45 Datasheet - Page 5

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

Table 3-1.
6438CS–ATARM–13-Oct-09
Signal Name
SHDN
WKUP
TCK
TDI
TDO
TMS
JTAGSEL
RTCK
NRST
TST
NTRST
BMS
DRXD
DTXD
IRQ
FIQ
PA0 - PA31
PB0 - PB31
Signal Description List (Continued)
Shut-Down Control
Wake-Up Input
Test Clock
Test Data In
Test Data Out
Test Mode Select
JTAG Selection
Return Test Clock
Microcontroller Reset
Test Mode Select
Test Reset Signal
Boot Mode Select
Debug Receive Data
Debug Transmit Data
External Interrupt Input
Fast Interrupt Input
Parallel IO Controller A
Parallel IO Controller B
Function
PIO Controller - PIOA- PIOB - PIOC - PIOD - PIOE
(2)
Advanced Interrupt Controller - AIC
Shutdown, Wakeup Logic
Debug Unit - DBGU
ICE and JTAG
Reset/Test
Output
Output
Input
Input
Input
Input
Input
Output
Input
Input
Output
I/O
Input
Input
Input
Input
I/O
I/O
Type
Low
Active
Level
Reference
VDDBU
VDDBU
VDDIOP0
VDDIOP0
VDDIOP0
VDDIOP0
VDDBU
VDDIOP0
VDDIOP0
VDDBU
VDDIOP0
VDDIOP0
(1)
(1)
(1)
(1)
(1)
(1)
Voltage
Driven at 0V only.
0: The device is in backup
mode
1: The device is running (not in
backup mode).
Accept between 0V and
VDDBU.
No pull-up resistor, Schmitt
trigger
No pull-up resistor, Schmitt
trigger
No pull-up resistor, Schmitt
trigger
Pull-down resistor (15 k
Open-drain output,
Pull-Up resistor (100 k
Schmitt trigger
Pull-down resistor (15 k
Schmitt trigger
Pull-Up resistor (100 k
Schmitt trigger
must be connected to GND or
VDDIOP.
Pulled-up input at reset
(100k
Pulled-up input at reset
(100k
Comments
AT91SAM9G45
Ω)
Ω)
(3)
(3)
, Schmitt trigger
, Schmitt trigger
Ω
Ω
Ω
Ω
),
),
).
),
5