Datasheet

MSP430F42x
MIXED SIGNAL MICROCONTROLLER
SLAS421A − APRIL 2004 − REVISED JUNE 2007
33
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
input/output schematic (continued)
Port P1, P1.2 to P1.7, input/output with Schmitt-trigger
DVSS
P1OUT.x
Module X OUT
P1DIR.x
Direction Control
From Module
P1SEL.x
D
EN
Interrupt
Edge
Select
P1IES.x P1SEL.x
P1IE.x
P1IFG.x
P1IRQ.x
EN
Set
Q
0
1
1
0
Pad Logic
0: Input
1: Output
Bus
keeper
DVSS
PnSEL.x PnDIR.x
Direction
From Module
PnOUT.x
Module X
OUT
PnIN.x
PnIE.x
PnIFG.x
PnIES.x
Module X IN
P1SEL.7 P1DIR.7 P1OUT.7 P1IN.7 P1IE.7 P1IFG.7 P1IES.7
P1SEL.2 P1DIR.2 P1OUT.2 P1IN.2 P1IE.2 P1IFG.2 P1IES.2
P1SEL.3 P1DIR.3 P1OUT.3 P1IN.3 P1IE.3 P1IFG.3 P1IES.3
P1SEL.4 P1DIR.4
P1OUT.4 P1IN.4 P1IE.4 P1IFG.4 P1IES.4
P1SEL.5 P1DIR.5 P1OUT.5 P1IN.5 P1IE.5 P1IFG.5 P1IES.5
P1SEL.6
P1DIR.6
P1OUT.6
P1IN.6
P1IE.6 P1IFG.6 P1IES.6
SVSOUT
DCM_SOMI
P1DIR.2
P1DIR.3
P1DIR.4
P1DIR.5
DCM_SIMO
ACLK
Module X IN
P1IN.x
P1.5/TACLK/ACLK/S28
P1.2/TA1/S31
P1.4/S29
P1.3/SVSOUT/S30
Control
NOTE: 2 ≤ x ≤ 7.
Port Function is Active if Port/LCD = 0
†
Timer_A3
‡
USART0
SIMO0(o)
‡
Out1 Sig.
†
CCI1A
†
unused
unused
TACLK
†
P1.7/SOMI0/S26
P1.6/SIMO0/S27
Segment xx
Port/LCD
Port/LCD
Segment
S26
S31
S30
S29
S28
S27
SOMI0(o)
‡
SIMO0(i)
‡
SOMI0(i)
‡
0: LCDM
< 0E0h
1: LCDM
≥ 0E0h
0: LCDM
< 0C0h
1: LCDM
≥ 0C0h
SYNC
MM
STC
STE
SYNC
MM
STC
STE
DCM_SOMI
DCM_SIMO
Direction Control for SOMI0
Direction Control for SIMO0