SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 37

• Manufacturer Part Number: SAM7L128
• Manufacturer: Atmel Corporation

Specifications of SAM7L128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 36 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 80
• Ext Interrupts: 80
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Segment Lcd: 40
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 460
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 6
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.8 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

10.3
6257A–ATARM–20-Feb-08
Peripheral Multiplexing on PIO Lines
The AT91SAM7L128/64 features three PIO controllers, PIOA, PIOB and PIOC, that multiplex
the I/O lines of the peripheral set.
PIO Controller A, B and C control respectively 26, 24 and 30 lines. Each line can be assigned to
one of two peripheral functions, A or B.
Table 10-2 on page 38
multiplexed on the PIO Controller A, B and C. The two columns “Function” and “Comments”
have been inserted for the user’s own comments; they may be used to track how pins are
defined in an application.
Note that some peripheral functions that are output only may be duplicated in the table.
At reset, all I/O lines are automatically configured as input with the programmable pull-up
enabled, so that the device is maintained in a static state as soon as a reset is detected.
defines how the I/O lines of the peripherals A, B or the analog inputs are
AT91SAM7L128/64 Preliminary
37