Atmel AT91SAM7L-STK User manual

6409A–ATARM–30-Jun-08
AT91SAM7L-STK Rev. A Starter Kit
....................................................................................................................
User Guide

1-2 AT91SAM7L-STK Rev. A Starter Kit User Guide
6409A–ATARM–30-Jun-08

AT91SAM7L-STK Rev. A Starter Kit User Guide i
6409A–ATARM–30-Jun-08
Table of Contents
Section 1
Overview ....................................................................................................................1-1
1.1 Scope................................................................................................................................. 1-1
1.2 Deliverables ...................................................................................................................... 1-1
1.3 The AT91SAM7L-STK Rev. A Starter Board..................................................................... 1-1
Section 2
Setting Up the AT91SAM7L-STK Rev. A Board.........................................................2-1
2.1 Electrostatic Warning......................................................................................................... 2-1
2.2 Requirements..................................................................................................................... 2-1
2.3 Layout ................................................................................................................................ 2-2
2.4 Powering Up the Board...................................................................................................... 2-2
2.5 Getting Started................................................................................................................... 2-2
2.6 AT91SAM7L-STK Rev. A Block Diagram .......................................................................... 2-3
Section 3
Board Description.......................................................................................................3-1
3.1 AT91SAM7L64/128 Microcontroller................................................................................... 3-1
3.2 AT91SAM7L64/128 Block Diagram ................................................................................... 3-3
3.3 Memory.............................................................................................................................. 3-4
3.4 Clock Circuitry.................................................................................................................... 3-4
3.5 Reset Circuitry ................................................................................................................... 3-4
3.6 Shut Down controller.......................................................................................................... 3-4
3.7 Power Supply Circuitry.......................................................................................................3-4
3.8 User Interface .................................................................................................................... 3-4
3.9 Debug Interface ................................................................................................................. 3-4
3.10 Expansion Slot................................................................................................................... 3-4
3.11 PIO Usage ......................................................................................................................... 3-5
Section 4
Configuration..............................................................................................................4-1
4.1 Configuration Straps .......................................................................................................... 4-1
Section 5
Schematics.................................................................................................................5-1
Section 6
Errata..........................................................................................................................6-1

Table of Contents (Continued)
ii AT91SAM7L-STK Rev. A Starter Kit User Guide
6409A–ATARM–30-Jun-08
6.1 Q1 Footprint Incorrect........................................................................................................ 6-1
6.2 MAX3318 Control Pull-ups................................................................................................. 6-2
Section 7
Revision History .........................................................................................................7-1

AT91SAM7L-STK Rev. A Starter Kit User Guide 1-1
6409A–ATARM–30-Jun-08
Section 1
Overview
1.1 Scope
The AT91SAM7L-STK rev.A starter kit enables evaluation capabilities and code development of applica-
tions running on an AT91SAM7L64/128.
This guide focuses on the AT91SAM7L-STK rev.A board as an evaluation platform.
1.2 Deliverables
The AT91SAM7L-STK rev.A package contains the following items:
An AT91SAM7L-STK rev.A board
Two AAA batteries
1.3 The AT91SAM7L-STK Rev. A Starter Board
The board is equipped with an AT91SAM7L128 (128-lead LQFP package) together with the following:
One DBGU serial communication port
One ZIGBEE extension connector
One JTAG/ICE debug interface
Five user- input push buttons
One WakeUP input push button
One Reset Push Button
One Battery Socket for two AAA batteries
One 400 segments dot matrix LCD

AT91SAM7L-STK Rev. A Starter Kit User Guide 2-1
6409A–ATARM–30-Jun-08
Section 2
Setting Up the AT91SAM7L-STK Rev. A Board
2.1 Electrostatic Warning
The AT91SAM7L-STK rev.A starter board is shipped in a protective anti-static package. The board must
not be subjected to high electrostatic potentials. A grounding strap or similar protective device should be
worn when handling the board. Avoid touching the component pins or any other metallic element.
2.2 Requirements
In order to set up the AT91SAM7L-STK rev.A starter board, the following items are needed:
The AT91SAM7L-STK rev.A starter board
Two AAA batteries

Setting Up the AT91SAM7L-STK Rev. A Board
2-2 AT91SAM7L-STK Rev. A Starter Kit User Guide
6409A–ATARM–30-Jun-08
2.3 Layout
Figure 2-1. AT91SAM7L-STK Rev. A Board Layout
2.4 Powering Up the Board
The AT91SAM7L-STK rev.A requires 3.0V (2.2V-3.6V) DC input. The power is supplied to the board via
2 AAA batteries or 3.0V VCC pads.
2.5 Getting Started
Please refer to the AT91SAM product pages on the Atmel web site, for the most up-to-date information
on getting started with the AT91SAM7L-STK rev.A.

Setting Up the AT91SAM7L-STK Rev. A Board
AT91SAM7L-STK Rev. A Starter Kit User Guide 2-3
6409A–ATARM–30-Jun-08
2.6 AT91SAM7L-STK Rev. A Block Diagram
Figure 2-2. AT91SAM7L-STK Block Diagram
PC[0..29]
PB[0..23]
PA[0..25]
PC[0..29]
AD[0..3]
PC[0..29]
AD[0..3]
PA[0..25]
PB[0..23]
SHEET 2
SHEET 4
SHEET 3
'%*8
56=,*%((
Processor
Processor
PB[0..23]
PA[0..25]
PC[0..29]
AD[0..3]
ERASE
LCD, KBD
LCD, KBD
PC[0..29]
PB[0..23]
PA[0..25]
AD[0..3]
ERASE
Interfaces
Interfaces
PC[0..29]

AT91SAM7L-STK Rev. A Starter Kit User Guide 3-1
6409A–ATARM–30-Jun-08
Section 3
Board Description
3.1 AT91SAM7L64/128 Microcontroller
•Incorporates the ARM7TDMI®ARM®Thumb®Processor
– High-performance 32-bit RISC Architecture
– High-density 16-bit Instruction Set
– Leader in MIPS/Watt
– EmbeddedICE™In-circuit Emulation, Debug Communication Channel Support
•Internal High-speed Flash
– 128 Kbytes (AT91SAM7L128), Organized in 512 Pages of 256 Bytes Single Plane
– 64 Kbytes (AT91SAM7L64), Organized In 256 Pages of 256 Bytes Single Plane
– Single Cycle Access at Up to 15 MHz in Worst Case Conditions
– 128-bit Read Access
– Page Programming Time: 4.6 ms, Including Page Auto Erase, Full Erase Time: 10 ms
– 10,000 Write Cycles, 10-year Data Retention Capability, Sector Lock Capabilities, Flash Security Bit
– Fast Flash Programming Interface for High Volume Production
•Enhanced Embedded Flash Controller (EEFC)
– Interface of the Flash Block with the 32-bit Internal Bus
– Increases Performance in ARM and Thumb Mode with 128-bit Wide Memory Interface
•Internal High-speed SRAM, Single-cycle Access at Maximum Speed
– 6 kbytes
• 2 Kbytes Directly on Main Supply that Can Be Used as Backup SRAM
• 4 Kbytes in the Core
•Memory Controller (MC)
– Enhanced Embedded Flash Controller, Abort Status and Misalignment Detection
•Reset Controller (RSTC)
– Based on Brownout Reset and Low-power Factory-calibrated Brownout Detector
– Provides External Reset Signal Shaping and Reset Source Status
•Clock Generator (CKGR)
– Low-power 32 kHz RC Oscillator, 32 kHz On-chip Oscillator, 2 MHz Fast RC Oscillator and one PLL
•Supply Controller (SUPC)
– Minimizes Device Power Consumption
– Manages the Different Supplies On Chip
– Supports Multiple Wake-up Sources
•Power Management Controller (PMC)
– Software Power Optimization Capabilities, Including Slow Clock Mode (Down to 500 Hz) and Idle Mode
– Three Programmable External Clock Signals
– Handles Fast Start Up
•Advanced Interrupt Controller (AIC)
– Individually Maskable, Eight-level Priority, Vectored Interrupt Sources
– Two External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt Protected

Board Description
3-2 AT91SAM7L-STK Rev. A Starter Kit User Guide
6409A–ATARM–30-Jun-08
•Debug Unit (DBGU)
– Two-wire UART and Support for Debug Communication Channel interrupt, Programmable ICE Access
Prevention
•Periodic Interval Timer (PIT)
– 20-bit Programmable Counter plus 12-bit Interval Counter
•Windowed Watchdog (WDT)
– 12-bit Key-protected Programmable Counter
– Provides Reset or Interrupt Signals to the System
– Counter may be Stopped While the Processor is in Debug State or in Idle Mode
•Real-time Clock (RTC)
– Two Hundred Year Calendar with Alarm
– Runs Off the Internal RC or Crystal Oscillator
•Three Parallel Input/Output Controllers (PIOA, PIOB, PIOC)
– Eighty Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os
– Input Change Interrupt Capability on Each I/O Line
– Individually Programmable Open-drain, Pull-up resistor and Synchronous Output
•Eleven Peripheral DMA Controller (PDC) Channels
•One Segmented LCD Controller
– Display Capacity of Forty Segments and Ten Common Terminals
– Software Selectable LCD Output Voltage (Contrast)
•Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)
– Individual Baud Rate Generator, IrDA®Infrared Modulation/Demodulation
– Support for ISO7816 T0/T1 Smart Card, Hardware Handshaking, RS485 Support
– Manchester Encoder/Decoder
– Full Modem Line Support on USART1
•One Master/Slave Serial Peripheral Interface (SPI)
– 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects
•One Three-channel 16-bit Timer/Counter (TC)
– Three External Clock Inputs, Two Multi-purpose I/O Pins per Channel
– Double PWM Generation, Capture/Waveform Mode, Up/Down Capability
•One Four-channel 16-bit PWM Controller (PWMC)
•One Two-wire Interface (TWI)
– Master, Multi-Master and Slave Mode Support, All Atmel®Two-wire EEPROMs and I2C compatible
Devices Supported
– General Call Supported in Slave Mode
•One 4-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os
•SAM-BA®Boot Assistant
– Default Boot Program
– Interface with SAM-BA Graphic User Interface
– In Application Programming Function (IAP)
•IEEE®1149.1 JTAG Boundary Scan on All Digital Pins
•I/Os, including Four High-current Drive I/O lines, Up to 4 mA Each
•Power Supplies
– Embedded 1.8V Regulator, Drawing up to 60 mA for the Core with Programmable Output Voltage
– Single Supply 1.8V - 3.6V
– Zero-power Power-on Reset and Brownout Detector, Fully Programmable
•Fully Static Operation: Up to 36 MHz at 85°C
•Available in a 128-lead LQFP Green and a 144-ball LFBGA Green Package