TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 267
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
Notes: Control 2 Descriptor is only use when VPC is in transmit mode. When VPC is in capture mode, programming the
validCount[11:0] to non-zero value may cause error in VPC engine.
Rev. 3.1 November 1, 2005
Field
31:20
19:8
7:0
Name
validCount[11:0]
Offset[11:0]
---
Description
Byte Valid Count – up to 4K byte
12’h000 = disable
12’h007 = 8 byte (minimum)
12’h008 = 9 byte
……
12’hFFF = 4096 bytes
When validcount[11:0] = 12’h000, which means all video data are continuous. If
validCount[11:0] are not zero then once validCount reach, the next video data address =
current address + offset.
Once the Valid count reach, then it then starts to count from 0 again.
Offset - up to 4K
12’h000 = 1 byte
12’h001 = 2 bytes
……
12’hFFF = 4096 bytes
Only valid when validcount[11:0] are not zero.
Once validCount reach then the next video data address = current address + offset.
Reserved.
Table 12-12 Control 2 Descriptor
12-15
Toshiba RISC Processor
TX4939
12
12
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