Datasheet

46
TMS320F28379S , TMS320F28377S
TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881C –AUGUST 2014–REVISED MAY 2016 www.ti.com
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Terminal Configuration and Functions Copyright © 2014–2016, Texas Instruments Incorporated
4.5.4 USB Pin Muxing
Table 4-6 shows assignment of the alternate USB function mapping. These can be configured with the
GPBAMSEL register.
Table 4-6. Alternate USB Function
GPIO GPBAMSEL SETTING USB FUNCTION
GPIO42 GPBAMSEL[10] = 1b USB0DM
GPIO43 GPBAMSEL[11] = 1b USB0DP
4.5.5 High-Speed SPI Pin Muxing
The SPI module on this device has a high-speed mode. To achieve the highest possible speed, a special
GPIO configuration is used on a single GPIO mux option for each SPI. These GPIOs may also be used by
the SPI when not in high-speed mode (HS_MODE = 0).
To select the mux options that enable the SPI high-speed mode, configure the GPyGMUX and GPyMUX
registers as shown in Table 4-7.
Table 4-7. GPIO Configuration for High-Speed SPI
GPIO SPI SIGNAL MUX CONFIGURATION
SPIA
GPIO58 SPISIMOA GPBGMUX2[21:20]=11b GPBMUX2[21:20]=11b
GPIO59 SPISOMIA GPBGMUX2[23:22]=11b GPBMUX2[23:22]=11b
GPIO60 SPICLKA GPBGMUX2[25:24]=11b GPBMUX2[25:24]=11b
GPIO61 SPISTEA GPBGMUX2[27:26]=11b GPBMUX2[27:26]=11b
SPIB
GPIO63 SPISIMOB GPBGMUX2[31:30]=11b GPBMUX2[31:30]=11b
GPIO64 SPISOMIB GPCGMUX1[1:0]=11b GPCMUX1[1:0]=11b
GPIO65 SPICLKB GPCGMUX1[3:2]=11b GPCMUX1[3:2]=11b
GPIO66 SPISTEB GPCGMUX1[5:4]=11b GPCMUX1[5:4]=11b
SPIC
GPIO69 SPISIMOC GPCGMUX1[11:10]=11b GPCMUX1[11:10]=11b
GPIO70 SPISOMIC GPCGMUX1[13:12]=11b GPCMUX1[13:12]=11b
GPIO71 SPICLKC GPCGMUX1[15:14]=11b GPCMUX1[15:14]=11b
GPIO72 SPISTEC GPCGMUX1[17:16]=11b GPCMUX1[17:16]=11b