TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 455
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
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ATA100
17.1. Overview
This document is the functional specification for the ATA Host Interface Controller used in TX4939.
The following table lists the transfer modes that this interface supports.
Rev. 3.1 November 1, 2005
Compliant with ATA/ATAPI-6.
Can interface with the TX49 G-Bus.
Can become the Bus Master and transfer data to external memory.
Data bus widths of 64 bits, can select Byte Big/Little Endian.
Can select incrementing/decrementing/fixed address of the transfer address.
Realizes Auto DMA mode. (When issuing a DMA command, settings such as the transfer direction and transfer
start are unnecessary. After the command is issued, this controller can realize data transfer and only has to wait
for a Transfer End interrupt.)
Sets up the reset timer.
Has 16
transferring to/from the device and when transferring to/from the external memory.
Can issue Timing Error interrupts.
Can Support Scatter Gather DMA.
×
64-bit transmit FIFO and 16
Operating Frequency
Supported Mode
(PIO)
Supported Mode
(Multiword DMA)
Supported Mode
(Ultra DMA)
Chapter 17. ATA100 ATAP Interface
×
64-bit receive FIFO. Can absorb the transfer rate difference between when
100 MHz
Mode 0 (Cycle Time: 600 nsec)
Mode 1 (Cycle Time: 383 nsec)
Mode 2 (Cycle Time: 240 nsec)
Mode 3 (Cycle Time: 180 nsec)
Mode 4 (Cycle Time: 120 nsec)
Mode 0 (Cycle Time: 480 nsec)
Mode 1 (Cycle Time: 150 nsec)
Mode 2 (Cycle Time: 120 nsec)
Mode 0 (Cycle Time: 240 nsec)
Mode 1 (Cycle Time: 160 nsec)
Mode 2 (Cycle Time: 120 nsec)
Mode 3 (Cycle Time: 90 nsec)
Mode 4 (Cycle Time: 60 nsec)
Mode 5 (Cycle Time: 40 nsec)
17-1
Toshiba RISC Processor
TX4939
17
17
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