SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 51

• 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

12. Debug and Test Features
12.1
12.2
6257A–ATARM–20-Feb-08
Overview
Block Diagram
The AT91SAM7L Series Microcontrollers feature a number of complementary debug and test
capabilities. A common JTAG/ICE (Embedded ICE) port is used for standard debugging func-
tions, such as downloading code and single-stepping through programs. The Debug Unit
provides a two-pin UART that can be used to upload an application into internal SRAM. It man-
ages the interrupt handling of the internal COMMTX and COMMRX signals that trace the activity
of the Debug Communication Channel.
A set of dedicated debug and test input/output pins gives direct access to these capabilities from
a PC-based test environment.
Figure 12-1. Debug and Test Block Diagram
PDC
Boundary
ARM7TDMI
TAP
DBGU
ICE
ICE/JTAG
TAP
AT91SAM7L128/64 Preliminary
Reset
Test
and
POR
JTAGSEL
TDO
TMS
TCK
TDI
DTXD
DRXD
TST
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