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Digital AVR frequency meter
Posted 15 April -
Automatically switches off DMM
Posted 12 October -
Create multicolored LEDs
Posted 12 October -
Voltage curves on PC
Posted 12 October -
Ultrasonic Parking Sonar Schematic
Posted 28 July -
Battery Solutions for Energy Harvesting
Posted 28 July -
Simple Gas Leak Detector Circuit
Posted 30 April -
FTDI Infrared
Posted 28 April -
3 Axis Accelerometer Using PIC16F887
Posted 25 April -
Simple 3V adjustable Car adapter
Posted 14 April
Usb Wireless LAN Access Control
The AT76C503A is built around the Advanced System Bus (ASB) and
(Advanced Peripheral Bus (APB) structures of an embedded ARM7TDMI® 32-
bit RISC microcontroller. It integrates dedicated modules for memory interfacing,
USB control, wireless PHY interfacing and data encryption/decryption
using Wired Equivalent Privacy, as well as two system timers and an interrupt
controller for support functions. A decoder/arbiter/bridge module links the two
buses.
The high-speed ASB makes optimal use of the data processing bandwidth of
the ARM7TDMI core, while the lower-speed APB keeps power consumption to
a minimum for non-time-critical functions. This combination of bus structures,
as well as the use of dedicated FIFO (first-in, first-out) buffers and DMA (direct
memory access) for data transfers, enables the AT76C503A to achieve the
data throughput rates required for its USB and WLAN Interfaces (12 Mbps and
11 Mbps, respectively) while minimizing power consumption at the same
time.
