MSP430F41x2
MIXED SIGNAL MICROCONTROLLER
SLAS648E -- APRIL 2009 -- REVISED MARCH 2011
APPLICATION INFORMATION
Port P1 pin schematic: P1.7, input/output with Schmitt trigger
Pad Logic
To Comparator_A
From Comparator_A
CAPD.y
P1DIR.x
0
1
Direction
0: Input
1: Output
P1OUT.x
0
1
Module Out
P1.7/TA0CLK/
CAOUT/CA1
Bus
Keeper
EN
P1SEL.x
P1IN.x
EN
D
TA0CLK
to P1.5
P1IE.x
EN
Set
P1IRQ.x
Q
P1IFG.x
P1SEL.x
P1IES.x
Interrupt
Edge Select
Port P1 (P1.7) pin functions
CONTROL BITS / SIGNALS
PIN NAME (P1.X)
X
FUNCTION
CAPD
P1DIR.x
P1SEL.x
P1.7/TA0CLK/CAOUT/CA1
7
P1.x (I/O)
0
I: 0, O: 1
0
1
1
x
Timer0_A3.TACLK
CAOUT
0
0
1
x
0
CA1
1 (CAPD.1)
NOTES: 1. x: Don’t care
2. The input TA0CLK of P1.5 and P1.7 are combined by a logical OR. Therefore, only one of them should be enabled at a time to feed
in TA0CLK.
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