MSP430F543XA_12 Datasheet, PDF (78/104 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F543xA, MSP430F541xA
SLAS655B – JANUARY 2010 – REVISED OCTOBER 2010
Port P5, P5.4 to P5.7, Input/Output With Schmitt Trigger
P5REN.x
Pad Logic
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P5DIR.x
P5OUT.x
Module X OUT
P5SEL.x
P5IN.x
Module X IN
0
1
0
1
EN
D
Direction
0: Input
1: Output
DV_SS
0
DV_CC
1
1
P5DS.x
0: Low drive
1: High drive
P5.4/UCB1SOMI/UCB1SCL
P5.5/UCB1CLK/UCA1STE
P5.6/UCA1TXD/UCA1SIMO
P5.7/UCA1RXD/UCA1SOMI
Table 51. Port P5 (P5.4 to P5.7) Pin Functions
PIN NAME (P5.x)
x
FUNCTION
P5.4/UCB1SOMI/UCB1SCL
P5.5/UCB1CLK/UCA1STE
P5.6/UCA1TXD/UCA1SIMO
P5.7/UCA1RXD/UCA1SOMI
4 P5.4 (I/O)
UCB1SOMI/UCB1SCL^{(2) (3)}
5 P5.5 (I/O)
UCB1CLK/UCA1STE ⁽²⁾
6 P5.6 (I/O)
UCA1TXD/UCA1SIMO ⁽²⁾
7 P5.7 (I/O)
UCA1RXD/UCA1SOMI ⁽²⁾
(1) X = Don't care
(2) The pin direction is controlled by the USCI module.
(3) If the I2C functionality is selected, the output drives only the logical 0 to V_SS level.
CONTROL BITS/SIGNALS⁽¹⁾
P5DIR.x
P5SEL.x
I: 0; O: 1
0
X
1
I: 0; O: 1
0
X
1
I: 0; O: 1
0
X
1
I: 0; O: 1
0
X
1
78
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