TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 466

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TX4939XBG-400

Manufacturer Part Number
TX4939XBG-400
Description
Manufacturer
Toshiba
Datasheet

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
17.3.3. ATA100 Core Control Registers
17.3.3.1. Sector Count Register (C10h)
17.3.3.2. Transfer Start Lower Address Register (C18h)
This register is used only if PRD_NOT_EN in DMA Command Register is ‘1’. The 3 LSB’s should be 0.
This register sets the lower read/write start address of the transfer that this controller outputs to the G-Bus.
17.3.3.3. Transfer Start Upper Address Register (C20h)
This register is used only if PRD_NOT_EN in DMA Command Register is ‘1’.
This register sets the upper read/write start address of the transfer that this controller outputs to the G-Bus.
Rev. 3.1 November 1, 2005
BIT
Bit[15:0]:
Bit 15
Bit 7
Bit 15
Bit 15
Bit 7
Bit 7
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
Bit 14
Bit 6
NAME
Sector Count
Bit 14
Bit 14
Bit 6
Bit 6
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
Bit 13
Bit 5
Bit 13
Bit 13
Bit 5
Bit 5
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
Description
You can use this register to determine the number of sectors to transfer. The Transfer
Word Count Register determines the transfer byte count for each sector. Also, setting
“0000h” to this register results in the same operation as if “10000h” was set.
When transfer starts, the total sector number of transfers to be performed is set in this
register and this number is decremented when each sector transfer is performed.
Bit 12
Bit 4
Transfer Start Address [23:16]
Transfer Start Address[31:24]
Transfer Start Address[15:8]
Transfer Start Address [7:0]
Bit 12
Bit 12
Bit 4
Bit 4
R/W
R/W
R/W
R/W
R/W
R/W
Sector Count[15:8]
Sector Count[7:0]
0
0
0
0
0
0
17-12
Bit 11
Bit 3
Bit 11
Bit 11
Bit 3
Bit 3
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
Bit 10
Bit 2
Bit 10
Bit 10
Bit 2
Bit 2
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
Toshiba RISC Processor
Bit 9
Bit 1
Bit 9
Bit 1
Bit 9
Bit 1
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
0
1
0
0
0
0
TX4939
17
17

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