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MSP430F4783IPZ Datasheet(PDF) 58 Page - Texas Instruments |
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MSP430F4783IPZ Datasheet(HTML) 58 Page - Texas Instruments |
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58 / 79 page ![]() MSP430F47x3, MSP430F47x4 MIXED SIGNAL MICROCONTROLLER SLAS545C − MAY 2007 − REVISED MARCH 2011 58 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 port P3, P3.0 to P3.3, input/output with Schmitt trigger Bus Keeper EN Direction 0: Input 1: Output P3SEL.x 1 0 P3DIR.x P3IN.x D EN Module X IN 1 0 Module X OUT P3OUT.x P3.0/UCB0STE/UCA0CLK P3.1/UCB0SIMO/UCB0SDA P3.2/UCB0SOMI/UCB0SCL P3.3/UCB0CLK/UCA0STE 1 0 DVSS DVCC P3REN.x Pad Logic 1 USCI Direction Control DVSS Port P3 (P3.0 to P3.3) pin functions PIN NAME (P3 X) X FUNCTION CONTROL BITS / SIGNALS PIN NAME (P3.X) X FUNCTION P3DIR.x P3SEL.x P3.0/ 0 P3.0 (I/O) I: 0, O: 1 0 UCA0CLK/UCB0STE UCA0CLK/UCB0STE (see Notes 1, 2, 3) X 1 P3.1/ UCB0SIMO/ 1 P3.1 (I/O) I: 0, O: 1 0 UCB0SIMO/ UCB0SDA UCB0SIMO/UCB0SDA (see Notes 1, 2, 4) X 1 P3.2/ UCB0SOMI/ 2 P3.2 (I/O) I: 0, O: 1 0 UCB0SOMI/ UCB0SCL UCB0SOMI/UCB0SCL (see Notes 1, 2, 4) X 1 P3.3/ 3 P3.3 (I/O) I: 0, O: 1 0 UCB0CLK/UCA0STE UCB0CLK (see Notes 1, 2, 5) X 1 NOTES: 1. X: Don’t care. 2. The pin direction is controlled by the USCI module. 3. UCA0CLK function takes precedence over UCB0STE function. If the pin is required as UCA0CLK input or output USCI_B0 will be forced to 3-wire SPI mode even if 4-wire SPI mode is selected. 4. In case the I2C functionality is selected the output drives only the logical 0 to VSS level. 5. UCB0CLK function takes precedence over UCA0STE function. If the pin is required as UCB0CLK input or output USCI_A0 will be forced to 3-wire SPI mode even if 4-wire SPI mode is selected. |
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