MSP430FR5729 Datasheet, PDF (82/115 Pages) Texas Instruments – MSP430FR572x Mixed-Signal Microcontrollers

MSP430FR5729, MSP430FR5728, MSP430FR5727, MSP430FR5726, MSP430FR5725
MSP430FR5724, MSP430FR5723, MSP430FR5722, MSP430FR5721, MSP430FR5720
SLASE35A – MAY 2014 – REVISED JUNE 2014
7.9 Port P3, P3.4 to P3.6, Input/Output With Schmitt Trigger
Pad Logic
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P3REN.x
P3DIR.x
00
01
10
11
P3OUT.x
From module 1
DVSS
From module 2
P3SEL0.x
P3SEL1.x
P3IN.x
To modules
00
01
10
11
EN
D
DVSS
Direction
0: Input
1: Output
DVSS
0
DVCC
1
1
Bus
Keeper
P3.4/TB1.1/TB2CLK/SMCLK
P3.5/TB1.2/CDOUT
P3.6/TB2.1/TB1CLK
Table 7-9. Port P3 (P3.4 to P3.6) Pin Functions
PIN NAME (P3.x)
x
P3.4/TB1.1/TB2CLK/SMCLK
P3.5/TB1.2/CDOUT
P3.6/TB2.1/TB1CLK
4 P3.4 (I/O) ⁽¹⁾
TB1.CCI1B ⁽¹⁾
TB1.1 ⁽¹⁾
TB2CLK ⁽¹⁾
SMCLK ⁽¹⁾
5 P3.5 (I/O) ⁽¹⁾
TB1.CCI2B ⁽¹⁾
TB1.2 ⁽¹⁾
CDOUT ⁽¹⁾
6 P3.6 (I/O) ⁽¹⁾
TB2.CCI1B ⁽¹⁾
TB2.1 ⁽¹⁾
TB1CLK ⁽¹⁾
(1) Not available on all devices and package types.
FUNCTION
CONTROL BITS/SIGNALS
P3DIR.x P3SEL1.x P3SEL0.x
I: 0; O: 1
0
0
0
0
1
1
0
1
1
1
I: 0; O: 1
0
0
0
0
1
1
1
1
1
I: 0; O: 1
0
0
0
0
1
1
0
1
1
82
Input/Output Schematics
Copyright © 2014, Texas Instruments Incorporated
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