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TMS320DM365 Datasheet(PDF) 64 Page - Texas Instruments |
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TMS320DM365 Datasheet(HTML) 64 Page - Texas Instruments |
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64 / 211 page  TMS320DM365 SPRS457C – MARCH 2009 – REVISED APRIL 2010 www.ti.com 3.5 Pin Multiplexing The device makes extensive use of pin multiplexing to accommodate the large number of peripheral functions in the smallest possible package. In order to accomplish this, pin multiplexing is controlled using a combination of hardware configuration (at device reset) and software control. No attempt is made by the hardware to ensure that the proper pin muxing has been selected for the peripherals or interface mode being used, thus proper pin muxing configuration is the responsibility of the board and software designers. An overview of the pin multiplexing is shown in Table 3-10. All pin multiplexing options are configurable by software via pin mux registers that reside in the System Control Module. The PinMux0 Register controls the Video In muxing, PinMux1 register controls Video Out signals, PinMux2 register controls AEMIF signals, PinMux3 registers control the multiplexing of the GIO signals, the PinMux4 register controls the SPI and MMC/SD0 signals. See the TMS320DM36x DMSoC ARM Subsystem Reference Guide (literature number SPRUFG5) for complete descriptions of the pin mux registers. The device configuration pins are multiplexed with AEMIF pins. Note that the AECFG[2:0] inputs only select the default AEMIF address pin muxing. The number of active address pins may be increased or reduced at any time by modifying the appropriate bits in the PinMux2 control register. After the device configuration pins are sampled at reset, they automatically change to function as AEMIF pins. For more details on AEMIF default configuration, see Section 3.7.5. Table 3-10. Peripheral Pin Mux Overview Peripheral Muxed With Primary Function Secondary Function Tertiary Function VPFE (video in) GPIO and SPI3 GPIO VPFE (video in) SPI3 VPBE (video out) GPIO, PWM, and RTO GPIO VPBE (video out) PWM & RTO AEMIF GPIO AEMIF GPIO McBSP GPIO GPIO McBSP MMC/SD0 MMC/SD0 MMC/SD1 GPIO and EMIF GPIO MMC/SD1 EMIF CLKOUT GPIO GPIO CLKOUT I2C GPIO GPIO I2C UART0/UART1 GPIO GPIO UART SPI0,SPI1,SPI2,SPI4 GPIO GPIO SPI EMAC GPIO GPIO EXTINT EMAC HPI AEMIF AEMIF HPI 64 Device Configurations Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TMS320DM365 |
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