64-bit RISC microprocessor: TX4939XBG-400
64-bit RISC microprocessor with encoder, DDR-SDRAM controller, Ether MAC, and ATA100
The TX4939XBG-400 is based on a TX49/H4 core, and contains an encoder, a DDR-SDRAM controller, an ATA100, an Ether MAC, a PCI controller and other peripherals. It is a highly functional, high-performance, 64-bit RISC microprocessor optimally applicable to digital information appliances. The processor operates at a frequency of 400 MHz, while the PCI bus runs at a frequency of 33 / 66 MHz.
Features
- TX49/H4 64-bit RISC core
- On-chip caching
4-way set-associative caches
Instruction cache: 32 Kbytes
Data cache: 32 Kbytes
Cache lock function - Memory management unit
- Memory controller: DDR-SDRAM (32-bit, 400 MHz)
Supports NAND Flash, SRAM, ROM and NOR Flash - Encoder: Supports DES, 3DES, AES, MD5, SHA1 and Modular Exponentiation Operation Coprocessor
- DMA controller: 8 channels
- 10 / 100BASE-T EtherMAC: 2 channels
- ATA100: 2 channels
- Video port: 1-parallel I/O, 3-serial in
- PCI controller: 33 / 66 MHz
- AC-Link
- I2S
- SIO: 4 channels
- SPI
- I2C
- Interrupt controller
- Maximum operating frequency: 400 MHz
- I/O supply voltage: 3.3 V
Internal supply voltage: 1.25 V - I/O (DDR 400): 2.6 V
I/O (less or equal to DDR 333): 2.5 V - Package: 456-pin PBGA (with 36-pin thermal balls)
- Datasheet: TX4939XBG-400
TX4939 reference board.
This board consists of a CPU module and a base board
- CPU module
- TX4939XBG-400
- Contains four 512 M-bit DDR-SDRAMs suitable for the
- DDR400 in the standard configuration sized totally at 256 MB.
- Contains a power supply necessary to drive the DDR memory.
- Supports an EJTAG interface that allows data to be read and written.
- Supports a DIP switch used for boot setting.
- Provided with the CPU around which reset, clock and RTC circuits are installed.
- Base board
- The TX4939 contains two channels of Ethernet controllers each of which consists of a 10 / 100M Ethernet MAC and an external PHY.
- Supports a NOR flash ROM (x 16 bits) consisting of 32 MB of a user ROM and 8 MB of a monitor ROM.
- Contains 32 MB of a NAND flash ROM (x 8 bits).
- Supports two channels of ATA (IDE) interfaces.
- Contains an AUDIO (AC-link/I2S) interface.
- Supports five channels of PCI slots.
- Provided with a USB 2.0 host.
- Supports four channels of RS-232C interfaces.
- Contains a 100 Base-TX Ethernet controller used for debugging.
- Equipped with a ROM emulator connector.
- Supports two ISA slots.
- Contains a connector for external bus extension.
- Provided with an I/O controller.
- Contains a power supply.
- Full size: ATX size
- The model ID required for ordering TX4939 reference board is RBHMA4700 (CE).