Datasheet
Table Of Contents
- features
- description
- Available Options
- pin designation
- functional block diagram
- Terminal Functions
- short-form description
- absolute maximum ratings
- recommended operating conditions
- electrical characteristics over recommended operating free-air temperature
- supply current into AVCC + DVCC excluding external
- current consumption of active mode versus system frequency
- current consumption of active mode versus supply voltage
- Schmitt-trigger inputs -- Ports P1 and P2, RST/NMI, JTAG (TCK, TMS, TDI/TCLK, TDO/TDI)
- inputs Px.x, TAx
- leakage current
- outputs -- Ports P1 and P2
- output frequency
- wake-up LPM3
- RAM
- LCD
- USART0
- POR brownout, reset
- SVS (supply voltage supervisor/monitor)
- DCO
- crystal oscillator, LFXT1 oscillator
- SD16, power supply and recommended operating conditions
- SD16, analog input range
- SD16, analog performance (fSD16 = 1MHz, SD16OSRx = 256, SD16REFON = 1)
- SD16, built-in voltage reference
- SD16, built-in reference output buffer
- SD16, external reference input
- flash memory
- JTAG interface
- JTAG fuse
- Application Information
- input/output schematic
- Port P1, P1.0 to P1.1, input/output with Schmitt trigger
- Port P1, P1.2 to P1.7, input/output with Schmitt trigger
- Port P2, P2.0 to P2.1, input/output with Schmitt trigger
- Port P2, P2.2 to P2.5, input/output with Schmitt trigger
- Port P2, unbonded GPIOs P2.6 and P2.7
- JTAG pins (TMS, TCK, TDI/TCLK, TDO/TDI), input/output with Schmitt trigger or output
- JTAG fuse check mode
- input/output schematic
- Data Sheet Revision History
MSP430F42xA
MIXED SIGNAL MICROCONTROLLER
SLAS587 -- FEBRUARY 2008
35
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
input/output schematic (continued)
Port P2, P2.2 to P2.5, input/output with Schmitt trigger
DVSS
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
Pad Logic
0: Input
1: Output
Bus
keeper
CAPD.x
PnSEL.x PnDIR.x
Direction
From Module
PnOUT.x
Module X
OUT
PnIN.x
PnIE.x
PnIFG.x
PnIES.x
Module X IN
P2SEL.2 P2DIR.2 P2OUT.2 P2IN.2 P2IE.2 P2IFG.2 P2IES.2
P2SEL.3 P2DIR.3 P2OUT.3 P2IN.3 P2IE.3 P2IFG.3 P2IES.3
P2SEL.4 P2DIR.4
P2OUT.4 P2IN.4 P2IE.4 P2IFG.4 P2IES.4
P2SEL.5 P2DIR.5 P2OUT.5 P2IN.5 P2IE.5 P2IFG.5 P2IES.5
DVSS
DVSS
P2DIR.3
DVCC
DVSS DVSS
Module X IN
P2IN.x
P2.5/URXD0
P2.2/STE0
P2.4/UTXD0
P2.3/SVSIN
Control
NOTE: 2 ≤ x ≤ 5
Port function is active if CAPD.x = 0
†
USART0
UTXD0
†
STE0
†
unused
unused
URXD0
†
DVSS
DVSS
CAPD.x
To BrownOut/SVS for P2.3/SVSIN
DVSS
SVSCTL VLD
DVSS
DVSS
= 1111b