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Bus
Keeper
EN
Direction
0: Input
1: Output
P4SEL.x
1
0
P4DIR.x
P4IN.x
D
EN
Module X IN
1
0
Module X OUT
P4OUT.x
P4.3/TB0/A12
P4.4/TB1/A13
1
0
DVSS
DVCC
P4REN.x
ADC10AE1.y
Pad Logic
INCHx = 8+y
To ADC 10
1
P4DIR.6
P4SEL.6
ADC10AE1.7
P4.6/TBOUTH/A15
Timer_B Output Tristate Logic
†
MSP430G2744, MSP430G2544, MSP430G2444
SLAS892C – MARCH 2013 – REVISED SEPTEMBER 2014
www.ti.com
6.19.15 Port P4 Pin Schematic: P4.3 to P4.4, Input/Output With Schmitt Trigger
Table 6-29. Port P4 (P4.3 to P4.4) Pin Functions
CONTROL BITS OR SIGNALS
(1)
PIN NAME (P4.x)
x
y
FUNCTION
P4DIR.x
P4SEL.x
ADC10AE1.y
P4.3
(2)
(I/O)
I: 0; O: 1
0
0
Timer_B3.CCI0B
0
1
0
P4.3/TB0/A12
3
4
Timer_B3.TB0
1
1
0
A12
(3)
X
X
1
P4.4
(2)
(I/O)
I: 0; O: 1
0
0
Timer_B3.CCI1B
0
1
0
P4.4/TB1/A13
4
5
Timer_B3.TB1
1
1
0
A13
(3)
X
X
1
(1)
X = Don't care
(2)
Default after reset (PUC, POR)
(3)
Setting the ADC10AE1.y bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents when applying
analog signals.
64
Detailed Description
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