SPRACK2A September   2019  – March 2020 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1

 

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3.9 GPIO Multiplexing Diagram

Table 16 outlines the differences and similarities that exist in the GPIO mux between F28002x and F28004x. The legend for this table is Table 15. The main changes highlighted in Table 16 are the absence of SDFM mux positions and the DCDC GPIO support pins from F28002x. The other notable change is the addition of HIC mux positions and the use of X1 as a GPIO pin in the F28002x device if external clock is not used.

NOTE

This comparison guide focuses on the super-set devices F280049 and F280025. The Q-grade Q100 Part Numbers do not have GPIO12 or GPIO13 in either device.

Table 15. Mux Legend

Color Description
mux function common for both devices
mux function applicable only for F28004x
mux function applicable only for F28002x

Table 16. GPIO Mux Table Comparison

0,4,8,12 1 2 3 5 6 7 9 10 11 13 14 15 ALT
GPIO0 EPWM1_A I2CA_SDA SPIA_STE FSIRXA_CLK CLB_OUTPUTXBAR8 HIC_BASESEL1
GPIO1 EPWM1_B I2CA_SCL SPIA_SOMI CLB_OUTPUTXBAR7 HIC_A2 FSI_TDM_TX1 HIC_D10
GPIO2 EPWM2_A OUTPUTXBAR1 PMBUSA_SDA SPIA_SIMO SCIA_TX FSIRXA_D1 I2CB_SDA HIC_A1 CANA_TX HIC_D9
GPIO3 EPWM2_B OUTPUTXBAR2 OUTPUTXBAR2 PMBUSA_SCL SPIA_CLK SCIA_RX FSIRXA_D0 I2CB_SCL HIC_NOE CANA_RX HIC_D4
GPIO4 EPWM3_A OUTPUTXBAR3 CANA_TX SPIB_CLK EQEP2_STROBE FSIRXA_CLK CLB_OUTPUTXBAR6 HIC_BASESEL2 HIC_NWE
GPIO5 EPWM3_B OUTPUTXBAR3 CANA_RX SPIA_STE FSITXA_D1 CLB_OUTPUTXBAR5 HIC_A7 HIC_D4 HIC_D15
GPIO6 EPWM4_A OUTPUTXBAR4 SYNCOUT EQEP1_A CANB_TX SPIB_SOMI FSITXA_D0 FSITXA_D1 HIC_NBE1 CLB_OUTPUTXBAR8 HIC_D14
GPIO7 EPWM4_B OUTPUTXBAR5 EQEP1_B CANB_RX SPIB_SIMO FSITXA_CLK CLB_OUTPUTXBAR2 HIC_A6 HIC_D14
GPIO8 EPWM5_A CANB_TX ADCSOCAO EQEP1_STROBE SCIA_TX SPIA_SIMO I2CA_SCL FSITXA_D1 CLB_OUTPUTXBAR5 HIC_A0 FSI_TDM_CLK HIC_D8
GPIO9 EPWM5_B SCIB_TX OUTPUTXBAR6 EQEP1_INDEX SCIA_RX SPIA_CLK FSITXA_D0 LINB_RX HIC_BASESEL0 I2CB_SCL HIC_NRDY
GPIO10 EPWM6_A CANB_RX ADCSOCBO EQEP1_A SCIB_TX SPIA_SOMI I2CA_SDA FSITXA_CLK LINB_TX HIC_NWE FSI_TDM_TX0
GPIO11 EPWM6_B SCIB_RX OUTPUTXBAR7 EQEP1_B SCIB_RX SPIA_STE FSIRXA_D1 LINB_RX EQEP2_A SPIA_SIMO HIC_D6 HIC_NBE0
GPIO12 EPWM7_A CANB_TX EQEP1_STROBE SCIB_TX PMBUSA_CTL FSIRXA_D0 LINB_TX SPIA_CLK CANA_RX HIC_D13 HIC_INT
GPIO13 EPWM7_B CANB_RX EQEP1_INDEX SCIB_RX PMBUSA_ALERT FSIRXA_CLK LINB_RX SPIA_SOMI CANA_TX HIC_D11 HIC_D5
GPIO14 EPWM8_A SCIB_TX I2CB_SDA OUTPUTXBAR3 PMBUSA_SDA SPIB_CLK EQEP2_A LINB_TX EPWM3_A CLB_OUTPUTXBAR7 HIC_D15
GPIO15 EPWM8_B SCIB_RX I2CB_SCL OUTPUTXBAR4 PMBUSA_SCL SPIB_STE EQEP2_B LINB_RX EPWM3_B CLB_OUTPUTXBAR6 HIC_D12
GPIO16 SPIA_SIMO CANB_TX OUTPUTXBAR7 EPWM5_A SCIA_TX SD1_D1 EQEP1_STROBE PMBUSA_SCL XCLKOUT EQEP2_B SPIB_SOMI HIC_D1
GPIO17 SPIA_SOMI CANB_RX OUTPUTXBAR8 EPWM5_B SCIA_RX SD1_C1 EQEP1_INDEX PMBUSA_SDA CANA_TX HIC_D2
GPIO18 SPIA_CLK SCIB_TX CANA_RX EPWM6_A I2CA_SCL SD1_D2 EQEP2_A PMBUSA_CTL XCLKOUT LINB_TX FSI_TDM_CLK HIC_INT X2
GPIO19 SPIA_STE CANA_TX EPWM6_B I2CA_SDA EQEP2_B PMBUSA_ALERT CLB_OUTPUTXBAR1 LINB_RX FSI_TDM_TX0 HIC_NBE0 X1
GPIO22 EQEP1_
STROBE		 SCIB_TX SPIB_CLK SD1_D4 LINA_TX CLB_OUTPUTXBAR1 LINB_TX HIC_A5 EPWM4_A HIC_D13 VFBSW
GPIO23 EQEP1_INDEX SPIB_STE LINA_RX LINB_RX HIC_A3 EPWM4_B HIC_D11 VSW
GPIO24 OUTPUTXBAR1 EQEP2_A EPWM8_A SPIB_SIMO SD1_D1 LINB_TX PMBUSA_SCL SCIA_TX ERRORSTS HIC_D3
GPIO25 OUTPUTXBAR2 EQEP2_B EQEP1_A SPIB_SOMI SD1_C1 FSITXA_D1 PMBUSA_SDA SCIA_RX HIC_BASESEL0
GPIO26 OUTPUTXBAR3 EQEP2_INDEX OUTPUTXBAR3 SPIB_CLK SD1_D2 FSITXA_D0 PMBUSA_CTL I2CA_SDA HIC_D0 HIC_A1
GPIO27 OUTPUTXBAR4 EQEP2_
STROBE		 OUTPUTXBAR4 SPIB_STE SD1_C2 FSITXA_CLK PMBUSA_ALERT I2CA_SCL HIC_D1 HIC_A4
GPIO28 SCIA_RX EPWM7_A OUTPUTXBAR5 EQEP1_A SD1_D3 EQEP2_STROBE LINA_TX SPIB_CLK ERRORSTS I2CB_SDA HIC_NOE
GPIO29 SCIA_TX EPWM7_B OUTPUTXBAR6 EQEP1_B SD1_C3 EQEP2_INDEX LINA_RX SPIB_STE ERRORSTS I2CB_SCL HIC_NCS
GPIO30 CANA_RX SPIB_SIMO OUTPUTXBAR7 EQEP1_STROBE SD1_D4 FSIRXA_CLK EPWM1_A HIC_D8
GPIO31 CANA_TX SPIB_SOMI OUTPUTXBAR8 EQEP1_INDEX SD1_C4 FSIRXA_D1 EPWM1_B HIC_D10
GPIO32 I2CA_SDA SPIB_CLK EPWM8_B LINA_TX SD1_D3 FSIRXA_D0 CANA_TX ADCSOCBO HIC_INT
GPIO33 I2CA_SCL SPIB_STE OUTPUTXBAR4 LINA_RX SD1_C3 FSIRXA_CLK CANA_RX EQEP2_B ADCSOCAO HIC_D0
GPIO34 OUTPUTXBAR1 PMBUSA_SDA HIC_NBE1 I2CB_SDA HIC_D9
GPIO35 SCIA_RX I2CA_SDA CANA_RX PMBUSA_SCL LINA_RX EQEP1_A PMBUSA_CTL HIC_NWE TDI
GPIO37 OUTPUTXBAR2 I2CA_SCL SCIA_TX CANA_TX LINA_TX EQEP1_B PMBUSA_ALERT HIC_NRDY TDO
GPIO39 CANB_RX FSIRXA_CLK EQEP2_INDEX CLB_OUTPUTXBAR2 SYNCOUT EQEP1_INDEX HIC_D7
GPIO40 SPIB_SIMO EPWM2_B PMBUSA_SDA FSIRXA_D0 SCIB_TX EQEP1_A LINB_TX HIC_NBE1 HIC_D5
GPIO41 EPWM2_A PMBUSA_SCL FSIRXA_D1 EQEP1_B LINB_RX HIC_A4 SPIB_SOMI HIC_D12
GPIO42 LINA_RX OUTPUTXBAR5 PMBUSA_CTL I2CA_SDA EQEP1_STROBE CLB_OUTPUTXBAR3 HIC_D2 HIC_A6
GPIO43 OUTPUTXBAR6 PMBUSA_ALERT I2CA_SCL EQEP1_INDEX CLB_OUTPUTXBAR4 HIC_D3 HIC_A7
GPIO44 OUTPUTXBAR7 EQEP1_A FSITXA_CLK CLB_OUTPUTXBAR3 HIC_D7 HIC_D5
GPIO45 OUTPUTXBAR8 FSITXA_D0 CLB_OUTPUTXBAR4 HIC_D6
GPIO46 LINA_TX FSITXA_D1 HIC_NWE
GPIO56 SPIA_CLK EQEP2_STROBE SCIB_TX SD1_D3 SPIB_SIMO EQEP1_A
GPIO57 SPIA_STE EQEP2_INDEX SCIB_RX SD1_C3 SPIB_SOMI EQEP1_B
GPIO58 OUTPUTXBAR1 SPIB_CLK SD1_D4 LINA_TX CANB_TX EQEP1_STROBE
GPIO59 OUTPUTXBAR2 SPIB_STE SD1_C4 LINA_RX CANB_RX EQEP1_INDEX
AIO224 HIC_A3
AIO225 HIC_NWE
AIO226 HIC_A1
AIO227 HIC_NBE0
AIO228 HIC_A0
AIO230 HIC_BASESEL2
AIO231 HIC_BASESEL1
AIO232 HIC_BASESEL0
AIO233 HIC_A4
AIO237 HIC_A6
AIO238 HIC_NCS
AIO239 HIC_A5
AIO241 HIC_NBE1
AIO242 HIC_A2
AIO244 HIC_A7
AIO245 HIC_NOE