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MC9328MX21CJM Datasheet(PDF) 8 Page - Freescale Semiconductor, Inc |
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MC9328MX21CJM Datasheet(HTML) 8 Page - Freescale Semiconductor, Inc |
8 / 100 page MC9328MX21 Technical Data, Rev. 3.3 8 Freescale Semiconductor Signal Descriptions LSCLK Shift Clock. This signal is multiplexed with the BMI_CLK_CS from BMI. OE_ACD Alternate Crystal Direction/Output Enable. CONTRAST This signal is used to control the LCD bias voltage as contrast control. This signal is multiplexed with the BMI_READ from BMI. SPL_SPR Sampling start signal for left and right scanning. This signal is multiplexed with the SLCDC1_CLK. PS Control signal output for source driver (Sharp panel dedicated signal). This signal is multiplexed with the SLCDC1_CS. CLS Start signal output for gate driver. This signal is invert version of PS (Sharp panel dedicated signal). This signal is multiplexed with the SLCDC1_RS. REV Signal for common electrode driving signal preparation (Sharp panel dedicated signal). This signal is multiplexed with SLCDC1_D0. Smart LCD Controller SLCDC1_CLK SLCDC Clock output signal. This signal is multiplexed and available at 2 alternate locations. These are SPL_SPR and SD2_CLK signals of LCDC and SD2, respectively. SLCDC1_CS SLCDC Chip Select output signal. This signal is multiplexed and available at 2 alternate signal locations. These are PS and SD2_CMD signals of LCDC and SD2, respectively. SLCDC1_RS SLCDC Register Select output signal. This signal is multiplexed and available at 2 alternate signal locations. These are CLS and SD2_D3 signals of LCDC and SD2, respectively. SLCDC1_D0 SLCDC serial data output signal. This signal is multiplexed and available at 2 alternate signal locations. These are and REV and SD2_D2 signals of LCDC and SD2, respectively. This signal is inactive when a parallel data interface is used. SLCDC1_DAT[15:0] SLCDC Data output signals for connection to a parallel SLCD panel interface. These signals are multiplexed with LD[15:0] while an alternate 8-bit SLCD muxing is available on LD[15:8]. Further alternate muxing of these signals are available on some of the USB OTG and USBH1 signals. SLCDC2_CLK SLCDC Clock input signal for pass through to SLCD device. This signal is multiplexed with SSI3_CLK signal from SSI3. SLCDC2_CS SLCDC Chip Select input signal for pass through to SLCD device. This signal is multiplexed with SSI3_TXD signal from SSI3. SLCDC2_RS SLCDC Register Select input signal for pass through to SLCD device. This signal is multiplexed with SSI3_RXD signal from SSI3. SLCDC2_D0 SLCD Data input signal for pass through to SLCD device. This signal is multiplexed with SSI3_FS signal from SSI3. Bus Master Interface (BMI) BMI_D[15:0] BMI bidirectional data bus. Bus width is programmable between 8-bit or 16-bit.These signals are multiplexed with LD[15:0] and SLCDC_DAT[15:0]. BMI_CLK_CS BMI bidirectional clock or chip select signal.This signal is multiplexed with LSCLK of LCDC. BMI_WRITE BMI bidirectional signal to indicate read or write access. This is an input signal when the BMI is a slave and an output signal when BMI is the master of the interface. BMI_WRITE is asserted for write and negated for read.This signal is muxed with LD[17] of LCDC. BMI_READ BMI output signal to enable data read from external slave device. This signal is not used and driven high when BMI is slave.This signal is multiplexed with CONTRAST signal of LCDC. Table 2. i.MX21 Signal Descriptions (Continued) Signal Name Function/Notes |
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