TMS320C6421_0711 Datasheet, PDF (94/223 Pages) Texas Instruments – Fixed-Point Digital Signal Processor

TMS320C6421
Fixed-Point Digital Signal Processor
SPRS346C – JANUARY 2007 – REVISED NOVEMBER 2007
www.ti.com
3.7.3.2 Peripherals Spanning Multiple Pin Mux Blocks
Some peripherals span multiple Pin Mux Blocks. To use these peripherals, they must be selected in all of
the relevant Pin Mux Blocks. The following is the list of peripherals that span multiple Pin Mux Blocks:
• McBSP0: Six McBSP0 pins are located in the Serial Port Sub-Block 0, but the CLKS0 pin is muxed in
the Timer0 Block. To select McBSP0 pins, program PINMUX registers as follows:
– Serial Port Sub-Block 0: SPBK0 = 01
– Timer0 Block: If CLKS0 pin is desired, program TIM0BK = 10 or 11.
• UART0: The two UART0 data pins are located in the UART0 Data Block, but the two UART0 flow
control pins are located in the UART0 Flow Control Block. To select UART0, program PINMUX
registers as follows:
– UART0 Data Block: UR0BK = 1
– UART0 Flow Control Block: If flow control pins are desired, program UR0FCBK = 01.
3.7.3.3 Host Block Muxing
This block of 27 pins consists of HPI, VLYNQ, EMAC(MII), MDIO, and GPIO muxed pins. The following
register field selects the pin functions in the Host Block:
• PINMUX1.HOSTBK
Table 3-20 summarizes the 27 pins in the Host Block, the multiplexed function on each pin, and the
PINMUX configurations to select the corresponding function.
94
Device Configurations
Submit Documentation Feedback