MSP430F551X_1 Datasheet, PDF (82/115 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F551x
MSP430F552x
SLAS590D – OCTOBER 2009 – REVISED APRIL 2010
Port P4, P4.0 to P4.7, Input/Output With Schmitt Trigger
P4REN.x
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Pad Logic
P4DIR.x
from Port Mapping Control
P4OUT.x
from Port Mapping Control
P4SEL.x
P4IN.x
to Port Mapping Control
0
1
0
1
EN
D
Direction
0: Input
1: Output
DV_SS
0
DV_CC
1
1
P4DS.x
0: Low drive
1: High drive
P4.0/P4MAP0
P4.1/P4MAP1
P4.2/P4MAP2
P4.3/P4MAP3
P4.4/P4MAP4
P4.5/P4MAP5
P4.6/P4MAP6
P4.7/P4MAP7
Table 51. Port P4 (P4.0 to P4.7) Pin Functions
PIN NAME (P4.x)
P4.0/P4MAP0
P4.1/P4MAP1
P4.2/P4MAP2
P4.3/P4MAP3
P4.4/P4MAP4
P4.5/P4MAP5
P4.6/P4MAP6
P4.7/P4MAP7
x
FUNCTION
0 P4.0 (I/O)
Mapped secondary digital function
1 P4.1 (I/O)
Mapped secondary digital function
2 P4.2 (I/O)
Mapped secondary digital function
3 P4.3 (I/O)
Mapped secondary digital function
4 P4.4 (I/O)
Mapped secondary digital function
5 P4.5 (I/O)
Mapped secondary digital function
6 P4.6 (I/O)
Mapped secondary digital function
7 P4.7 (I/O)
Mapped secondary digital function
CONTROL BITS/SIGNALS
P4DIR.x ⁽¹⁾
P4SEL.x
P4MAPx
I: 0; O: 1
0
X
X
1
≤ 30
I: 0; O: 1
0
X
X
1
≤ 30
I: 0; O: 1
0
X
X
1
≤ 30
I: 0; O: 1
0
X
X
1
≤ 30
I: 0; O: 1
0
X
X
1
≤ 30
I: 0; O: 1
0
X
X
1
≤ 30
I: 0; O: 1
0
X
X
1
≤ 30
I: 0; O: 1
0
X
X
1
≤ 30
(1) The direction of some mapped secondary functions are controlled directly by the module. Please refer to Table 9 for specific direction
control information of mapped secondary functions.
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