Datasheet

MSP430x461x1, MSP430x461x
MIXED SIGNAL MICROCONTROLLER
68
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
port P4 (P4.2 to P4.5) pin functions
PIN NAME (P4 X)
X
FUNCTION
CONTROL BITS / SIGNALS
PIN NAME (P4.X)
X FUNCTION
P4DIR.x P4SEL.x LCDS36
P4.2/STE1/S39 2
P4.2 (I/O) I: 0; O: 1 0 0
USART1.STE1 X 1 0
S39 (see Note 1) X X 1
P4.3/SIMO/S38 3
P4.3 (I/O) I: 0; O: 1 0 0
USART1.SIMO1 (see Notes 1, 2) X 1 0
S38 (see Note 1) X X 1
P4.4/SOMI/S37 4
P4.4 (I/O) I: 0; O: 1 0 0
USART1.SOMI1 (see Notes 1, 2) X 1 0
S37 (see Note 1) X X 1
P4.5/SOMI/S36 5
P4.5 (I/O) I: 0; O: 1 0 0
USART1.UCLK1 (see Notes 1, 2) X 1 0
S36 (see Note 1) X X 1
P4.6/UCA0TXD/S35 6
P4.6 (I/O) I: 0; O: 1 0 0
USCI_A0.UCA0TXD (see Notes 1, 3) X 1 0
S35 (see Note 1) X X 1
P4.7/UCA0RXD/S34 7
P4.7 (I/O) I: 0; O: 1 0 0
USCI_A0.UCA0RXD (see Notes 1, 3) X 1 0
S34 (see Note 1) X X 1
NOTES: 1. X: Don’t care.
2. The pin direction is controlled by the USART1 module.
3. When in USCI mode, P4.6 is set to output, P4.7 is set to input.