TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 495
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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EMAC
The block diagram of a single TX4939 Ethernet Controller is given in Figure 18-2.
Rev. 3.1 November 1, 2005
Ethernet Controller
PHY Layer
Bus Master Burst
MAC Tx
DMA Tx Block
MAC Layer
DMA Layer
Block
Bus Control Layer
Clock
MAC Tx FIFO
Figure 18-2 Ethernet Controller Block Diagram
10BASE-TPHY or 100BASE-XPHY
PCI Clock
66 MHz
SRAM
32-bit
DMA
MII <-> RMII
Status Register
PCI Controller
MAC Control
18-3
ARC
DII
BII
Rx Block
Bus Slave
DMA
Clock
MAC Rx FIFO
DMA Control Status
Flow Control
Register
PCI Config
Register
Toshiba RISC Processor
MAC Rx
Block
G-Bus
TX4939
18
18
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