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TMS320DM6467T
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SPRS605C JULY 2009REVISED JUNE 2012
4.7.3.9 UART1 Pin Muxing
The UART1 module can operate as either a UART or IrDA/CIR interface. The UART1 pin muxing options
are shown in Table 4-35. When UART operation is selected, UART1CTL must be set to either ‘00’ for
UART with flow control or ‘01’ for UART without flow control signals. When IrDA/CIR operation is selected,
UART1CTL must be set to ‘10’ to use the IrDA/CIR signals. If UART1 is unused, then setting UART1CTL
= 11 muxes GPIO function onto all the pins. The UART1 pin functions may be overridden based on the
settings of TSPIMUX and TSPOMUX
Table 4-35. UART1 Pin Muxing
PIN FUNCTIONS
UTXD1/ URTS1 / UCTS1 /
URXD1/
TSPIMUX[1] TSPIMUX[0] TSPOMUX[1] TSPOMUX[0] UART1CTL[1] UART1CTL[0]
URCTX1/ UIRTX1/ USD1/
TS0_DIN7/
TS0_DOUT7/ TS0_WAITO/ TS0_EN_WAITO/
GP[23]
GP[24] GP[25] GP[26]
0 x 0 x 0 0 URXD1 UTXD1 URTS1 UCTS1
0 x 0 x 0 1 URXD1 UTXD1 GP[25] GP[26]
0 x 0 x 1 0 URXD1 URCTX1 UIRTX1 USD1
0 x 0 x 1 1 GP[23] GP[24] GP[25] GP[26]
0 x 1 0 0 0 URXD1 UTXD1 URTS1 UCTS1
0 x 1 0 0 1 URXD1 UTXD1 GP[25] GP[26]
0 x 1 0 1 0 URXD1 URCTX1 UIRTX1 USD1
0 x 1 0 1 1 GP[23] GP[24] GP[25] GP[26]
0 x 1 1 0 0 URXD1 TS0_DOUT7 URTS1 UCTS1
0 x 1 1 0 1 URXD1 TS0_DOUT7 GP[25] GP[26]
0 x 1 1 1 0 URXD1 TS0_DOUT7 UIRTX1 USD1
0 x 1 1 1 1 GP[23] TS0_DOUT7 GP[25] GP[26]
1 0 0 x 0 x URXD1 UTXD1 TS0_WAITO TS0_EN_WAITO
1 0 0 x 1 0 URXD1 URCTX1 TS0_WAITO TS0_EN_WAITO
1 0 0 x 1 1 GP[23] GP[24] TS0_WAITO TS0_EN_WAITO
1 0 1 0 0 x URXD1 UTXD1 TS0_WAITO TS0_EN_WAITO
1 0 1 0 1 0 URXD1 URCTX1 TS0_WAITO TS0_EN_WAITO
1 0 1 0 1 1 GP[23] GP[24] TS0_WAITO TS0_EN_WAITO
1 0 1 1 0 x URXD1 TS0_DOUT7 TS0_WAITO TS0_EN_WAITO
1 0 1 1 1 0 URXD1 TS0_DOUT7 TS0_WAITO TS0_EN_WAITO
1 0 1 1 1 1 GP[23] TS0_DOUT7 TS0_WAITO TS0_EN_WAITO
1 1 0 x 0 x TS0_DIN7 UTXD1 TS0_WAITO TS0_EN_WAITO
1 1 0 x 1 0 TS0_DIN7 URCTX1 TS0_WAITO TS0_EN_WAITO
1 1 0 x 1 1 TS0_DIN7 GP[24] TS0_WAITO TS0_EN_WAITO
1 1 1 0 0 x TS0_DIN7 UTXD1 TS0_WAITO TS0_EN_WAITO
1 1 1 0 1 0 TS0_DIN7 URCTX1 TS0_WAITO TS0_EN_WAITO
1 1 1 0 1 1 TS0_DIN7 GP[24] TS0_WAITO TS0_EN_WAITO
1 1 1 1 x x TS0_DIN7 TS0_DOUT7 TS0_WAITO TS0_EN_WAITO
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