Datasheet

MSP430F42x
MIXED SIGNAL MICROCONTROLLER
SLAS421A − APRIL 2004 − REVISED JUNE 2007
34
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
input/output schematic (continued)
port P2, P2.0 to P2.1, input/output with Schmitt-trigger
P2OUT.x
Module X OUT
P2DIR.x
Direction Control
From Module
P2SEL.x
D
EN
Interrupt
Edge
Select
P2IES.x P2SEL.x
P2IE.x
P2IFG.x
P2IRQ.x
EN
Set
Q
0
1
1
0
PnSel.x PnDIR.x
Dir. Control
from module
PnOUT.x
Module X
OUT
PnIN.x PnIE.x PnIFG.x PnIES.xModule X IN
0: Port active
1: Segment xx function active
P2Sel.0 P2DIR.0
P2Sel.1 P2DIR.1
P2DIR.0
DCM_UCLK
P2OUT.0
P2OUT.1
P2IN.0
P2IN.1 UCLK0(i)
Out2sig.
UCLK0(o)
P2IE.0
P2IE.1
P2IFG.0
P2IFG.1
P2IES.0
P2IES.1
Module X IN
P2IN.x
Pad Logic
0: Input
1: Output
Bus
Keeper
CCI2A
Port/LCD
Port/LCD
Segment xx
P2.0/TA2/S25
P2.1/UCLK0/S24
†
†
Timer_A3
‡
USART0
‡
†
‡
Segment
S25
S24
0: LCDM
< 0E0h
1: LCDM
≥ 0E0h
NOTE: 0 ≤ x ≤ 1.
Port Function is Active if Port/LCD = 0
SYNC
MM
STC
STE
DCM_UCLK
Direction Control for UCLK0