AT32UC3C2512C Automotive Atmel Corporation, AT32UC3C2512C Automotive Datasheet - Page 298
AT32UC3C2512C Automotive
Manufacturer Part Number
AT32UC3C2512C Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.AT32UC3C0512C_AUTOMOTIVE.pdf
(1312 pages)
3.AT32UC3C0512C_AUTOMOTIVE.pdf
(107 pages)
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17. External Bus Interface (EBI)
17.1
17.2
9166C–AVR-08/11
Features
Overview
Rev.: 1.7.0.2
•
•
•
•
The External Bus Interface (EBI) is designed to ensure the successful data transfer between
several external devices and the embedded memory controller of a 32-bit AVR device. The
Static Memory and SDRAM Controllers are all featured external memory controllers on the EBI.
These external memory controllers are capable of handling several types of external memory
and peripheral devices, such as SRAM, PROM, EPROM, EEPROM, Flash, and SDRAM.
The EBI handles data transfers with up to four external devices, each assigned to four address
spaces defined by the embedded memory controller. Data transfers are performed through a 16-
8)-bit data bus, an address bus of up to 24 bits, up to four chip select lines (NCS[3:0]), and sev-
eral control pins that are generally multiplexed between the different external memory
controllers.
Optimized for application memory space support
Integrates two external memory controllers:
Optimized external bus:16(or 8)-bit data bus
Up to 4 Chip Selects, Configurable Assignment:
– Static Memory Controller (SMC)
– SDRAM Controller (SDRAMC)
– Up to 24-bit Address Bus, Up to 16-Mbytes Addressable
– Optimized pin multiplexing to reduce latencies on external memories
– Static Memory Controller on Chip Select 0
– SDRAM Controller or Static Memory Controller on Chip Select 1
– Static Memory Controller on Chip Select 2
– Static Memory Controller on Chip Select 3
AT32UC3C
298
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