AT91SAM7L64-AU Atmel, AT91SAM7L64-AU Datasheet - Page 57
AT91SAM7L64-AU
Manufacturer Part Number
AT91SAM7L64-AU
Description
MCU ARM7 64K HS FLASH 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7L64-AU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
36MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
80
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
6K x 8
Voltage - Supply (vcc/vdd)
1.55 V ~ 1.8 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
128-LQFP
Controller Family/series
AT91SAM7xxx
No. Of I/o's
80
Ram Memory Size
6KB
Cpu Speed
36MHz
No. Of Timers
1
Rohs Compliant
Yes
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
6 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
36 MHz
Number Of Programmable I/os
80
Number Of Timers
3
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, AT91SAM7L-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 4 Channel
For Use With
AT91SAM7L-STK - KIT EVAL FOR AT91SAM7LAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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13. Reset Controller (RSTC)
13.1
13.2
13.3
13.3.1
6257A–ATARM–20-Feb-08
Overview
Block Diagram
Functional Description
Reset Controller Overview
The Reset Controller (RSTC), based on a zero-power power-on reset cell, handles all the resets
of the system without any external components. It reports which reset occurred last.
The Reset Controller also drives independently or simultaneously the external reset and the
peripheral and processor resets.
Figure 13-1. Reset Controller Block Diagram
The Reset Controller is made up of an NRST Manager and a Reset State Manager. It runs at
Slow Clock and generates the following reset signals:
These reset signals are asserted by the Reset Controller, either on external events or on soft-
ware action. The Reset State Manager controls the generation of reset signals and provides a
signal to the NRST Manager when an assertion of the NRST pin is required.
The NRST Manager shapes the NRST assertion during a programmable time, thus controlling
external device resets.
• proc_nreset: Processor reset line. It also resets the Watchdog Timer.
• periph_nreset: Affects the whole set of embedded peripherals.
• nrst_out: Drives the NRST pin.
core_backup_reset
vddcore_nreset
WDRPROC
wd_fault
NRST
nrst_out
Reset Controller
AT91SAM7L128/64 Preliminary
Manager
NRST
user_reset
exter_nreset
Manager
Reset
State
SLCK
rstc_irq
proc_nreset
periph_nreset
57
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