TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 109
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TX4939XBG-400
Manufacturer:
NSC
Quantity:
872
Company:
Part Number:
TX4939XBG-400
Manufacturer:
TOSHIBA
Quantity:
10 440
Part Number:
TX4939XBG-400
Manufacturer:
TOSHIBA/东芝
Quantity:
20 000
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CG
5.6.3. PCI Clock De-Skew
PCI De-Skew is performed by PLL circuit. Figure 5-11 shows this diagram and recommended PCI Clock distribution.
Rev. 3.1 November 1, 2005
PCICLK1
div 2
div 2
PCI66S
33/66 MHz
PCI Service
Figure 5-11 Structure of PCI Clock De-Skew Circuit
Clocks
5-15
PLL
PCI CG
PCICLKIN
Same timing point in terms
of PCI Clock Positive Edge
Clock
Tree
Toshiba RISC Processor
Logic
PCI
TX4939
5
5
5
5
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