AT91SAM7A3-AU Atmel, AT91SAM7A3-AU Datasheet - Page 319

IC ARM7 MCU FLASH 256K 100LQFP

AT91SAM7A3-AU

Manufacturer Part Number
AT91SAM7A3-AU
Description
IC ARM7 MCU FLASH 256K 100LQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheets

Specifications of AT91SAM7A3-AU

Core Processor
ARM7
Core Size
16/32-Bit
Speed
60MHz
Connectivity
CAN, I²C, MMC, SPI, SSC, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
62
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-LQFP
Controller Family/series
AT91SAM7xx
No. Of I/o's
62
Ram Memory Size
32KB
Cpu Speed
60MHz
No. Of Timers
3
Rohs Compliant
Yes
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
60 MHz
Operating Supply Voltage
3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
62
Interface Type
CAN/SPI/I2S/TWI/USART/USB
On-chip Adc
2(8-chx10-bit)
Number Of Timers
3
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Ram Size
32 KB
Maximum Clock Frequency
60 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM7A3-EK
Minimum Operating Temperature
- 40 C
Cpu Family
91S
Device Core Size
32b
Frequency (max)
60MHz
Total Internal Ram Size
32KB
# I/os (max)
62
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
100
Package Type
LQFP
For Use With
AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7A3-EK - KIT EVAL FOR AT91SAM7A3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
 Details

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Quantity
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30.4
Table 30-1.
30.5
30.5.1
30.5.2
30.5.3
30.6
6042E–ATARM–14-Dec-06
Pin Name
RF
RK
RD
TF
TK
TD
Pin Name List
Product Dependencies
Functional Description
I/O Lines
Power Management
Interrupt
I/O Lines Description
The pins used for interfacing the compliant external devices may be multiplexed with PIO
lines.
Before using the SSC receiver, the PIO controller must be configured to dedicate the SSC
receiver I/O lines to the SSC peripheral mode.
Before using the SSC transmitter, the PIO controller must be configured to dedicate the SSC
transmitter I/O lines to the SSC peripheral mode.
The SSC is not continuously clocked. The SSC interface may be clocked through the Power
Management Controller (PMC), therefore the programmer must first configure the PMC to
enable the SSC clock.
The SSC interface has an interrupt line connected to the Advanced Interrupt Controller (AIC).
Handling interrupts requires programming the AIC before configuring the SSC.
All SSC interrupts can be enabled/disabled configuring the SSC Interrupt mask register. Each
pending and unmasked SSC interrupt will assert the SSC interrupt line. The SSC interrupt ser-
vice routine can get the interrupt origin by reading the SSC interrupt status register.
This chapter contains the functional description of the following: SSC Functional Block, Clock
Management, Data format, Start, Transmitter, Receiver and Frame Sync.
The receiver and transmitter operate separately. However, they can work synchronously by
programming the receiver to use the transmit clock and/or to start a data transfer when trans-
mission starts. Alternatively, this can be done by programming the transmitter to use the
receive clock and/or to start a data transfer when reception starts. The transmitter and the
receiver can be programmed to operate with the clock signals provided on either the TK or RK
pins. This allows the SSC to support many slave-mode data transfers. The maximum clock
speed allowed on the TK and RK pins is the master clock divided by 2.
Pin Description
Receiver Frame Synchro
Receiver Clock
Receiver Data
Transmitter Frame Synchro
Transmitter Clock
Transmitter Data
AT91SAM7A3 Preliminary
Input/Output
Input/Output
Input/Output
Input/Output
Output
Type
Input
319

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