参数资料
型号: MCIMX27LVOP4AR2
厂商: Freescale Semiconductor
文件页数: 72/152页
文件大小: 0K
描述: IC LOW END I.MX27 404-MAPBGA
视频文件: i.MX27 Multimedia Application Processor
标准包装: 1,000
系列: i.MX27
核心处理器: ARM9
芯体尺寸: 32-位
速度: 400MHz
连通性: 1 线,CAN,EBI/EMI,以太网,I²C,MMC,智能卡,SPI,SSI,UART/USART,USB OTG
外围设备: DMA,LCD,POR,PWM,WDT
程序存储器类型: ROMless
RAM 容量: 45K x 8
电压 - 电源 (Vcc/Vdd): 1.38 V ~ 1.52 V
振荡器型: 外部
工作温度: -20°C ~ 85°C
封装/外壳: 404-LFBGA
包装: 带卷 (TR)
i.MX27 and i.MX27L Data Sheet, Rev. 1.8
26
Freescale Semiconductor
Signal Descriptions
– Support 16 reference frame for H.264 decoding
– Quarter-pel and half-pel accuracy motion estimation
– [+/-16, +/-16] Search range
– Unrestricted motion vector
— All variable block sizes are supported (in case of encoding, 8
× 4, 4 × 8, and 4 × 4 block sizes
are not supported).
— MPEG-4 AC/DC prediction and H.264 Intra prediction
— H.263 Annex I, J, K(RS = 0 and ASO =0), and T are supported. In case of encoding, the Annex
I and K(RS=1 or ASO=1) are not supported.
— CIR (Cyclic Intra Refresh)/AIR (Adaptive Intra Refresh)
— Error resilience tools
– MPEG-4 re-synchronize marker and data-partitioning with RVLC (fixed number of
bits/macroblocks between macroblocks)
– H.264/AVC FMO and ASO
– H.263 slice structured mode
— Bit-rate control (CBR and VBR)
Pre/post rotation/mirroring
— 8 rotation/mirroring modes for image to be encoded
— 8 rotation/mirroring modes for image to be displayed
Programmability
— Embeds 16-bit DSP processor that is dedicated to processing bitstream and driving codec
hardware
— General purpose registers and interrupt generation for communication between system and
video codec module
3
Signal Descriptions
This section discusses the following:
Identifies and defines all device signals in text, tables, and (as appropriate) figures. Signals can be
organized by group, as applicable.
Contains pin-assignment/contact-connection diagrams, if the sequence of information in the data
sheet requires them to be included here.
Table 3 shows the i.MX27/MX27L signal descriptions.
Table 3. i.MX27/MX27L Signal Descriptions
Pad Name
Function/Notes
External Bus/Chip Select (EMI)
A [13:0]
Address bus signals, shared with SDRAM/MDDR, WEIM and PCMCIA, A[10] for
SDRAM/MDDR is not the address but the pre-charge bank select signal.
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