TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 691
TX4939XBG-400
Manufacturer Part Number
TX4939XBG-400
Description
Manufacturer
Toshiba
Datasheet
1.TX4939XBG-400.pdf
(740 pages)
Specifications of TX4939XBG-400
Cpu Core
TX49/H4 90nm
Clock Mhz/max Mips
400/520
Inst./data Cache
32KB (4 Way)/32KB (4 Way)
Tlb
x
1cycle Mac
x
Volts (v)
1.25/2.5/3.3
Peripherals
DDR, NAND, ATA, ETHERNET, SECURITY, FPU, MMU, SPI, I2S, I2C, PCI, VIDEO, UART, TIMER, RTC
Companion Chip
TC86C001FG
Package
PGBA456
Available stocks
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CRYPT
26.1. Feature
The CRYPT Engine consists of three modules, such as CIPHER engine, Modular Exponentiation Operation Coprocessor
engine and Random Number Generator (RNG) engine.
26.1.1. CIPHER Engine
26.1.2. Modular Exponentiation Operation Coprocessor Engine
26.1.3. Random Number Generator (RNG) Engine
Rev. 3.1 November 1, 2005
Supports DES/3DES/AES
Supports MD5/SHA1
Dedicated DMA with chain mode
Reduced KEY exposure for CBC mode in AES
(a) 6 set of KEY and Initial-data register
(b) KEY registers are W/O (write only)
(c) keep initial data for each stream
(d) Initial data will be updated for CBC mode
(e) Decryption-KEY will be generated from Encryption-KEY without exposure
Supports Ex-OR operation
Supports up to 1152bits modular exponentiation operation
Has high degree of randomness
26-1
Chapter 26. CRYPT Engine
Toshiba RISC Processor
TX4939
26
26
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