Bus
Keeper
EN
Direction
0: Input
1: Output
P4SEL .x
1
0
P4DIR.x
P4IN .x
LCDS 32/36
Segment Sy
Pad Logic
DV SS
D
EN
Module X IN
1
0
Module X OUT
P4OUT.x
Note : x = 2,3,4,5,6,7
y = 34,35,36,37,38,39
P4.7/UCA0RXD /S34
P4.6/UCA0TXD/S35
P4.5/UCLK 1/S36
P4.4/SOMI 1/S37
P4.3/SIMO 1/S38
P4.2/STE1/S39
Direction control
from Module X
MSP430FG4619, MSP430FG4618, MSP430FG4617, MSP430FG4616
MSP430CG4619, MSP430CG4618, MSP430CG4617, MSP430CG4616
SLAS508J – APRIL 2006 – REVISED JUNE 2015
www.ti.com
6.10.8 Port P4, P4.2 to P4.7, Input/Output With Schmitt Trigger
Table 6-18. Port P4 (P4.2 to P4.5) Pin Functions
CONTROL BITS OR SIGNALS
(1)
PIN NAME (P4.x)
x
FUNCTION
P4DIR.x
P4SEL.x
LCDS36
P4.2 (I/O)
I: 0; O: 1
0
0
P4.2/STE1/S39
2
USART1.STE1
X
1
0
S39
X
X
1
P4.3 (I/O)
I: 0; O: 1
0
0
P4.3/SIMO/S38
3
USART1.SIMO1
(2)
X
1
0
S38
X
X
1
P4.4 (I/O)
I: 0; O: 1
0
0
P4.4/SOMI/S37
4
USART1.SOMI1
(2)
X
1
0
S37
X
X
1
P4.5 (I/O)
I: 0; O: 1
0
0
P4.5/SOMI/S36
5
USART1.UCLK1
(2)
X
1
0
S36
X
X
1
(1)
X = don't care
(2)
The pin direction is controlled by the USART1 module.
74
Detailed Description
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MSP430FG4619 MSP430FG4618 MSP430FG4617 MSP430FG4616 MSP430CG4619
MSP430CG4618 MSP430CG4617 MSP430CG4616