at32ap7002 ATMEL Corporation, at32ap7002 Datasheet - Page 32

• Manufacturer Part Number: at32ap7002
• Description: Avr 32 32-bit Microcontroller
• Manufacturer: ATMEL Corporation

7.8
7.8.1
7.8.2
7.8.3
32054DS–AVR32–10/07
Peripheral overview
External Bus Interface
Static Memory Controller
SDRAM Controller
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Optimized for Application Memory Space support
Integrates Three External Memory Controllers:
Additional Logic for NAND Flash/SmartMedia
Optimized External Bus:
Up to 6 Chip Selects, Configurable Assignment:
6 Chip Selects Available
64-Mbyte Address Space per Chip Select
8-, 16- or 32-bit Data Bus
Word, Halfword, Byte Transfers
Byte Write or Byte Select Lines
Programmable Setup, Pulse And Hold Time for Read Signals per Chip Select
Programmable Setup, Pulse And Hold Time for Write Signals per Chip Select
Programmable Data Float Time per Chip Select
Compliant with LCD Module
External Wait Request
Automatic Switch to Slow Clock Mode
Asynchronous Read in Page Mode Supported: Page Size Ranges from 4 to 32 Bytes
Numerous Configurations Supported
Programming Facilities
– Static Memory Controller
– SDRAM Controller
– ECC Controller
– SmartMedia support: 8-bit as well as 16-bit devices are supported
– CompactFlash support: all modes (Attribute Memory, Common Memory, I/O, True IDE) are
– 16- or 32-bit Data Bus
– Up to 26-bit Address Bus, Up to 64-Mbytes Addressable
– Optimized pin multiplexing to reduce latencies on External Memories
– Static Memory Controller on NCS0
– SDRAM Controller or Static Memory Controller on NCS1
– Static Memory Controller on NCS2
– Static Memory Controller on NCS3, Optional NAND Flash/SmartMedia
– Static Memory Controller on NCS4 - NCS5, Optional CompactFlash
– 2K, 4K, 8K Row Address Memory Parts
– SDRAM with Two or Four Internal Banks
– SDRAM with 16- or 32-bit Data Path
– Word, Half-word, Byte Access
– Automatic Page Break When Memory Boundary Has Been Reached
– Multibank Ping-pong Access
– Timing Parameters Specified by Software
– Automatic Refresh Operation, Refresh Rate is Programmable
supported but the signals _IOIS16 (I/O and True IDE modes) and _ATA SEL (True IDE mode)
are not handled.
TM
and CompactFlash
TM
Support
TM
AT32AP7002
TM
Support
Support
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