AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 29
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AT91SAM7X128
Manufacturer Part Number
AT91SAM7X128
Description
MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
Manufacturer
Atmel
Datasheet
1.AT91SAM7X512-AU-999.pdf
(687 pages)
Specifications of AT91SAM7X128
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
Ram Size
32 KB
Program Memory Size
128 KB
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Program Memory Type
Flash
Number Of Programmable I/os
62
Interface Type
CAN/Ethernet/SPI/I2S/TWI/USART/USB
On-chip Adc
8-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
3
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9.5
9.6
9.7
6120H–ATARM–17-Feb-09
Debug Unit
Periodic Interval Timer
Watchdog Timer
• Vectoring
• Protect Mode
• Fast Forcing
• General Interrupt Mask
• Comprises:
• Two-pin UART
• Debug Communication Channel Support
• Chip ID Registers
• 20-bit programmable counter plus 12-bit interval counter
• 12-bit key-protected Programmable Counter running on prescaled SLCK
• Provides reset or interrupt signals to the system
• Counter may be stopped while the processor is in debug state or in idle mode
– Higher priority interrupts can be served during service of lower priority interrupt
– Optimizes interrupt service routine branch and execution
– One 32-bit vector register per interrupt source
– Interrupt vector register reads the corresponding current interrupt vector
– Easy debugging by preventing automatic operations
– Permits redirecting any interrupt source on the fast interrupt
– Provides processor synchronization on events without triggering an interrupt
– One two-pin UART
– One Interface for the Debug Communication Channel (DCC) support
– One set of Chip ID Registers
– One Interface providing ICE Access Prevention
– USART-compatible User Interface
– Programmable Baud Rate Generator
– Parity, Framing and Overrun Error
– Automatic Echo, Local Loopback and Remote Loopback Channel Modes
– Offers visibility of COMMRX and COMMTX signals from the ARM Processor
– Identification of the device revision, sizes of the embedded memories, set of
– Chip ID is 0x275C 0A40 (VERSION 0) for AT91SAM7X512
– Chip ID is 0x275B 0940 (VERSION 0) for AT91SAM7X256
– Chip ID is 0x275A 0740 (VERSION 0) for AT91SAM7X128
peripherals
AT91SAM7X512/256/128 Preliminary
29
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