AT91SAM7S128 ATMEL [ATMEL Corporation], AT91SAM7S128 Datasheet - Page 6

• Manufacturer Part Number: AT91SAM7S128
• Manufacturer: ATMEL [ATMEL Corporation]

4. Signal Description
Table 4-1.
6
Signal Name
VDDIN
VDDOUT
VDDFLASH
VDDIO
VDDCORE
VDDPLL
GND
XIN
XOUT
PLLRC
PCK0 - PCK2
TCK
TDI
TDO
TMS
JTAGSEL
ERASE
NRST
TST
DRXD
DTXD
IRQ0 - IRQ1
FIQ
PA0 - PA31
AT91SAM7S Series Summary
Signal Description List
Voltage and ADC Regulator Power Supply Input
Voltage Regulator Output
I/O Lines Power Supply
PLL
Ground
Main Oscillator Input
Main Oscillator Output
Test Clock
Test Data In
Test Mode Select
Test Mode Select
Debug Transmit Data
External Interrupt Inputs
Fast Interrupt Input
Function
Flash Power Supply
Core Power Supply
PLL Filter
Programmable Clock Output
Test Data Out
JTAG Selection
Flash and NVM Configuration Bits Erase
Command
Microcontroller Reset
Debug Receive Data
Parallel IO Controller A
Clocks, Oscillators and PLLs
Flash Memory
ICE and JTAG
Debug Unit
Reset/Test
Power
AIC
PIO
Ground
Output
Output
Output
Output
Power
Power
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
Active
Level
High
High
Low
Comments
3.0 to 3.6V
1.85V nominal
3.0V to 3.6V
3.0V to 3.6V or 1.65V to 1.95V
1.65V to 1.95V
1.65V to 1.95V
No pull-up resistor
No pull-up resistor
No pull-up resistor
Pull-down resistor
Pull-down resistor
Open-drain with pull-Up resistor
Pull-down resistor
IRQ1 not present on
AT91SAM7S32
Pulled-up input at reset
PA0 - PA20 only on
6175BS–ATARM–04-Nov-05
AT91SAM7S32