AM1705
www.ti.com
SPRS657–FEBRUARY 2010
AM1705 ARM Microprocessor
Check for Samples: AM1705
1 AM1705 ARM Microprocessor
1.1 Features
123
– Two Independent Programmable Realtime
Unit (PRU) Cores
• Applications
– Industrial Automation
– Home Automation
– Test and Measurement
– Portable Data Terminals
– Eduational Consoles
•
•
•
•
32-Bit Load/Store RISC architecture
4K Byte instruction RAM per core
512 Bytes data RAM per core
PRU Subsystem (PRUSS) can be disabled
via software to save power
– Power Protection Systems
• 375/456-MHz ARM926EJ-S™ RISC Core
– 32-Bit and 16-Bit (Thumb®) Instructions
– Single Cycle MAC
– ARM® Jazelle® Technology
– EmbeddedICE-RT™ for Real-Time Debug
• ARM9 Memory Architecture
– 16K-Byte Instruction Cache
– 16K-Byte Data Cache
– 8K-Byte RAM (Vector Table)
– 64K-Byte ROM
• Enhanced Direct-Memory-Access Controller 3
(EDMA3):
– Standard power management mechanism
•
•
Clock gating
Entire subsystem under a single PSC
clock gating domain
– Dedicated interrupt controller
– Dedicated switched central resource
• Multimedia Card (MMC)/Secure Digital (SD)
Card Interface with Secure Data I/O (SDIO)
• Two Master/Slave Inter-Integrated Circuit (I2C
Bus™)
• USB 2.0 OTG Port With Integrated PHY (USB0)
– USB 2.0 High-/Full-Speed Client
– USB 2.0 High-/Full-/Low-Speed Host
– End Point 0 (Control)
– 2 Transfer Controllers
– 32 Independent DMA Channels
– 8 Quick DMA Channels
– End Points 1,2,3,4 (Control, Bulk, Interrupt or
ISOC) Rx and Tx
– Programmable Transfer Burst Size
• 128K-Byte RAM Memory
• 3.3V LVCMOS IOs (except for USB interface)
• Two External Memory Interfaces:
– EMIFA
• Two Multichannel Audio Serial Ports:
– Transmit/Receive Clocks up to 50 MHz
– Six Clock Zones and 28 Serial Data Pins
– Supports TDM, I2S, and Similar Formats
– FIFO buffers for Transmit and Receive
• 10/100 Mb/s Ethernet MAC (EMAC):
– IEEE 802.3 Compliant (3.3-V I/O Only)
– RMII Media Independent Interface
– Management Data I/O (MDIO) Module
• One 64-Bit General-Purpose Timer
(Configurable as Two 32-Bit Timers)
• One 64-bit General-Purpose/Watchdog Timer
(Configurable as Two 32-bit General-Purpose
Timers)
•
•
NOR (8-/16-Bit-Wide Data)
NAND (8-/16-Bit-Wide Data)
– EMIFB
16-Bit SDRAM With 256MB Address
Space
•
• Three Configurable 16550 type UART Modules:
– UART0 With Modem Control Signals
– 16-byte FIFO
– 16x or 13x Oversampling Option
• Three Enhanced Pulse Width Modulators
(eHRPWM):
• Two Serial Peripheral Interfaces (SPI) Each
With One Chip-Select
– Dedicated 16-Bit Time-Base Counter With
Period And Frequency Control
• Programmable Real-Time Unit Subsystem
(PRUSS)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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ARM926EJ-S, EmbeddedICE-RT, ETM9, CoreSight are trademarks of ARM Limited.
ARM, Jazelle are registered trademarks of ARM Limited.
ADVANCE INFORMATION concerns new products in the sampling
or preproduction phase of development. Characteristic data and other
specifications are subject to change without notice.
Copyright © 2010, Texas Instruments Incorporated