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參數(shù)資料
| 型號： | VRC4171A |
| 廠商： | NEC Corp. |
| 英文描述： | Companion Chip for VR4100 Family MIPS RISC Microprocessor(VR4100系列RSIC微處理器的配對芯片) |
| 中文描述： | 同伴芯片為VR4100家庭的MIPS RISC微處理器（VR4100系列重結(jié)晶微處理器的配對芯片） |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 114K |
| 代理商： | VRC4171A |
Preliminary Data Sheet
U13816EU1V0DS00
August 1998
Description
The V
RC
4171A
TM
is a companion chip to NEC’s 64-bit V
R
41xx
TM
family of MIPS RISC
microprocessors. Together, these two devices form the essential engine for most Windows
CE-based handheld products.
Features
Processor Interface
LCD module: *RD, *WR, *LCDCS and LCDRDY signals from the V
R
41xx
Other modules: mini-ISA-like 16-bit bus interface (as defined in the V
R
41xx)
256 x 18-bit on-chip color palette RAM for STN, DSTN, and TFT color panels
On-chip hardware cursor control (32 x 32 x 2)
LCD Panel Support
240- and 480-line single scans
480-line dual scans
STN, DSTN, and TFT color panels
Nonindexed, true color (R, G, B): 15-bit (5-5-5) and 16-bit (5-6-5)
Controller functions (320 x 240, 480 x 240, 640 x 240, and 640 x 480)
–
Monochrome: up to 16 gray-scale levels (1, 2, or 4 bits/pixel)
–
Color depth: 1, 2, 4, 5, 6, 8, or 16 bits/pixel
Frame Buffer Memory
One or two 3.3-volt 256K x 16-bit DRAMs (512K or 1 MB)
One 1 MB x 16-bit DRAM (2 MB)
PC Card
TM
Slots (up to two)
PC Card or CompactFlash
TM
with adapter
PC Card or CompactFlash or Miniature Card
TM
–
PC Card controller: compliant with ExCA and PCMCIA release 2.1
–
CompactFlash controller: compliant with release 1.1
–
Miniature Card controller: compliant with release 1 (flash/ROM only)
Other Features
Up to four general-purpose I/O (GPIO) pins orup to two GPIO pins and two PCS pins
5-volt tolerance for LCD panel, frame buffer, and PC Card interface signals
208-pin LQFP package
3.3-volt ±5% operation
V
RC
4171A
Companion Chip for
V
R
4100 Family MIPS RISC Microprocessors
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