MSP430FR6889 Datasheet, PDF (98/176 Pages) Texas Instruments – Mixed-Signal Microcontrollers

MSP430FR6889, MSP430FR68891, MSP430FR6888, MSP430FR6887
MSP430FR5889, MSP430FR58891, MSP430FR5888, MSP430FR5887
SLASE32A – AUGUST 2014 – REVISED MARCH 2015
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6.11.23.7 Port P3, P3.0 to P3.7, Input/Output With Schmitt Trigger
Pin Schematic: see Figure 6-1.
Table 6-21. Port P3 (P3.0 to P3.3) Pin Functions
PIN NAME (P3.x)
P3.0/UCB1CLK/Sz
x
FUNCTION
0 P3.0 (I/O)
UCB1CLK
N/A
Internally tied to DVSS
N/A
Internally tied to DVSS
Sz ⁽³⁾
CONTROL BITS AND SIGNALS ⁽¹⁾
P3DIR.x P3SEL1.x P3SEL0.x LCDSz
I: 0; O: 1
0
0
0
X ⁽²⁾
0
1
0
0
1
0
0
1
0
1
1
0
1
X
X
X
1
P3.1/UCB1SIMO/UCB1SDA/Sz
1 P3.1 (I/O)
UCB1SIMO/UCB1SDA
N/A
Internally tied to DVSS
N/A
Internally tied to DVSS
Sz ⁽³⁾
I: 0; O: 1
0
0
0
X ⁽²⁾
0
1
0
0
1
0
0
1
0
1
1
0
1
X
X
X
1
P3.2/UCB1SOMI/UCB1SCL/Sz
2 P3.2 (I/O)
UCB1SOMI/UCB1SCL
N/A
Internally tied to DVSS
Sz ⁽³⁾
I: 0; O: 1
0
0
0
X ⁽²⁾
0
1
0
0
1
0
0
1
0
1
1
0
1
X
X
X
1
P3.3/TA1.1/TB0CLK/Sz
3 P3.3 (I/O)
I: 0; O: 1
0
0
0
N/A
Internally tied to DVSS
0
0
1
0
1
TA1.CCI1A
TA1.1
0
1
0
0
1
TB0CLK
Internally tied to DVSS
Sz ⁽³⁾
0
1
1
0
1
X
X
X
1
(1) X = Don't care
(2) Direction controlled by eUSCI_B1 module.
(3) The associated LCD segment is package dependent. See the Signal Descriptions tables and Pin Diagrams figures.
98
Detailed Description
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