TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 112

• Manufacturer Part Number: TX4939XBG-400
• Manufacturer: Toshiba

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

Address
6.2. Physical Address Map Overview
TX4939 supports up to 64G (2
of the TX4939, such as (1) TX4939 Internal registers (refer to 6.5 Register Map), (2) DDR SDRAM, (3) External Devices
such as ROM, I/O Devices, and (4) PCI Bus.
Each resource is to be allocated in any physical addresses by the register setup. Refer to the explanation of each controller
for the details of the mapping. At initialization, only the internal registers and the memory space which stores the TX49/H4
core reset vectors are allocated shown as Figure 6-2. Usually ROM connected to the external bus controller channel 0 is
used for the memory device that stores the reset vectors.
Rev. 3.1 November 1, 2005
TX49/H4 &
TX49/H4 & G
0xF_FFFF_FFFF
0xF_C000_0000
0xF_BFFF_FFFF
0xF_8000_0000
0xF_7FFF_FFFF
0x0_4000_0000
0x0_3FFF_FFFF
0x0_2000_0000
0x0_1FFF_FFFF
0x0_0000_0000
1.0 GB
1.0 GB
1.0 GB
0.5 GB
0.5 GB
G-
-
BUS
BUS
36
0xF_FF1F_FFFF
0xF_FF1F_0000
Registers
) bytes of physical address. Following resources are to be allocated in the physical address
Figure 6-2 Physical Address Map at Initializing System
Internal
6-2
0x0_1FFF_FFFF
0x0_1800_0000
0x0_17FF_FFFF
0x0_1000_0000
0x0_0FFF_FFFF
0x0_0800_0000
0x0_07FF_FFFF
0x0_0000_0000
ENLARGED
ENLARGED
128 MB
128 MB
128 MB
128 MB
32 MB
Default Mapping
0x0_1FFF_FFFF
0x0_1FC0_0000
0x0_1FBF_FFFF
0x0_1F80_0000
0x0_1F7F_FFFF
0x0_1F40_0000
0x0_1F3F_FFFF
0x0_1F00_0000
0x0_1EFF_FFFF
0x0_1EC0_0000
0x0_1EBF_FFFF
0x0_1E80_0000
0x0_1E7F_FFFF
0x0_1E40_0000
0x0_1E3F_FFFF
0xF_1E00_0000
External Bus
BOOT BLOCK
BOOT BLOCK
Toshiba RISC Processor
Channel-0
Rev 2.12
TX4939
6
6