参数资料
型号: MC9328MXLVP20
厂商: Freescale Semiconductor
文件页数: 54/90页
文件大小: 0K
描述: IC MCU I.MX 200MHZ 225-MAPBGA
标准包装: 160
系列: i.MXL
核心处理器: ARM9
芯体尺寸: 32-位
速度: 200MHz
连通性: EBI/EMI,I²C,MMC/SD,SPI,SSI,UART/USART,USB
外围设备: DMA,I²S,LCD,POR,PWM,WDT
输入/输出数: 97
程序存储器类型: ROMless
电压 - 电源 (Vcc/Vdd): 1.7 V ~ 3.3 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 225-LFBGA
包装: 托盘
Functional Description and Application Information
MC9328MXL Technical Data, Rev. 8
58
Freescale Semiconductor
4.7
Multimedia Card/Secure Digital Host Controller
The DMA interface block controls all data routing between the external data bus (DMA access), internal
MMC/SD module data bus, and internal system FIFO access through a dedicated state machine that
monitors the status of FIFO content (empty or full), FIFO address, and byte/block counters for the
MMC/SD module (inner system) and the application (user programming).
Figure 42. Chip-Select Read Cycle Timing Diagram
T8
SCLK to valid LD data
-3
3
ns
T9
End of HSYN idle2 to VSYN edge
(for non-display region)
22
Ts
T9
End of HSYN idle2 to VSYN edge
(for Display region)
11
Ts
T10
VSYN to OE active (Sharp = 0) when VWAIT2 = 0
1
Ts
T10
VSYN to OE active (Sharp = 1) when VWAIT2 = 0
2
Ts
Note:
Ts is the SCLK period which equals LCDC_CLK / (PCD + 1). Normally LCDC_CLK = 15ns.
VSYN, HSYN and OE can be programmed as active high or active low. In Figure 41, all 3 signals
are active low.
The polarity of SCLK and LD[15:0] can also be programmed.
SCLK can be programmed to be deactivated during the VSYN pulse or the OE deasserted period.
In Figure 41, SCLK is always active.
For T9 non-display region, VSYN is non-active. It is used as an reference.
XMAX is defined in pixels.
Table 21. 4/8/16 Bit/Pixel TFT Color Mode Panel Timing (Continued)
Symbol
Description
Minimum
Corresponding Register Value
Unit
Bus Clock
5b
6b
6a
7
5a
4a
3a
1
CMD_DAT Input
CMD_DAT Output
4b
3b
Valid Data
2
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