TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 264
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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Video Port
12.3.6.3. ControlB (CtrlB)
Note: Vdpacket must be equal to or greater than Vddata. Programming Vdpacket to be smaller than Vddata will cause
undefined behavioral in VPC.
*Programming Vddata and Vdpacket to a value less than 127 may cause undefined behavioral in VPC.
12.3.6.4. Initial Descriptor Pointer Register
12.3.6.5. Current Descriptor Pointer Register
Rev. 3.1 November 1, 2005
Bit(s)
63:29
28:16
15:13
12:0
Bit(s)
63:32
31:0
Bit(s)
63:32
31:0
Field
–
Vddata
–
Vdpacket
–
–
CDESPtr RO
Field
IDESPtr
Field
R/W
RO
R/W
RO
R/W
Table 12-6 Current Descriptor Pointer Register (CDESPtr)
R/W
RO
R/W
R/W
RO
Table 12-5 Initial Descriptor Pointer Register (IDESPtr)
Default
0
187
0
187
Default
0
0
Default
0
0
Table 12-4 ControlB Register (CtrlB)
Description
Reserved
Video data length
This field is only used when select MPEG-2 Transport Stream as video format.
Reserved
Video packet length
This field is only used when select MPEG-2 Transport Stream as video format.
Description
Reserved
Initial Descriptor Pointer.
When ENVPC set to “1” the DMA engine begin to fetch the first
Descriptor at this address
Description
Reserved
Current Descriptor Pointer.
- This register contents the address of the Descriptor that the DMA
engine is currently pointing to.
12-12
0-126:
127:
128:
129:
….
187:
….
8190:
8191:
0-126:
127:
128:
129:
….
187:
….
8190:
8191:
unsupported*
128 Byte packets
129 Byte packets
130 Byte packets
188 Byte packets (default)
8191 Byte packets
8192 Byte packets
unsupported*
128 Byte packets
129 Byte packets
130 Byte packets
188 Byte packets (default)
8191 Byte packets
8192 Byte packets
CtrlB1
IDESPtr1
CDESPtr1
CtrlB2
CtrlB3
IDESPtr2
IDESPtr3
CDESPtr2
CDESPtr3
Toshiba RISC Processor
0xA010
0xA030
0xA050
0xA018
0xA038
0xA058
0xA020
0xA040
0xA060
TX4939
12
12
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