Datasheet
Table Of Contents
- features
- description
- pin designation
- functional block diagram
- Terminal Functions
- short-form description
- absolute maximum ratings
- recommended operating conditions
- electrical characteristics
- supply current into AVCC + DVCC1/2 excluding external current
- SCHMITT-trigger inputs − Ports P1, P2, P3, P4, P5, and P6; RST/NMI; JTAG: TCK, TMS, TDI/TCLK, TDO/TDI
- inputs Px.x, TAx, TBx
- leakage current − Ports P1, P2, P3, P4, P5, and P6
- outputs − Ports P1, P2, P3, P4, P5, and P6
- output frequency
- wake-up LPM3
- RAM
- LCD
- Comparator_A
- POR/brownout reset (BOR)
- SVS (supply voltage supervisor/monitor)
- DCO
- crystal oscillator, LFXT1 oscillator
- crystal oscillator, XT2 oscillator
- USART0
- 12-bit ADC, power supply and input range conditions
- 12-bit ADC, external reference
- 12-bit ADC, built-in reference
- 12-bit ADC, timing parameters
- 12-bit ADC, linearity parameters
- 12-bit ADC, temperature sensor and built-in VMID
- 12-bit DAC, supply specifications
- 12-bit DAC, linearity specifications
- 12-bit DAC, output specifications
- 12-bit DAC, reference input specifications
- 12-bit DAC, dynamic specifications; Vref = VCC, DAC12IR = 1
- operational amplifier OA, supply specifications
- operational amplifier OA, input/output specifications
- operational amplifier OA, dynamic specifications
- Flash Memory
- JTAG Interface
- JTAG Fuse
- Application Information
- input/output schematic
- Port P1, P1.0 to P1.5, input/output with Schmitt-trigger
- Port P1, P1.6, P1.7, input/output with Schmitt-trigger
- port P2, P2.0, P2.4 to P2.5, input/output with Schmitt-trigger
- port P2, P2.1 to P2.3, input/output with Schmitt-trigger
- port P2, P2.6 to P2.7, input/output with Schmitt-trigger
- port P3, P3.0 to P3.3, input/output with Schmitt-trigger
- port P3, P3.4 to P3.7, input/output with Schmitt-trigger
- port P4, P4.0 to P4.5, input/output with Schmitt-trigger
- port P4, P4.6, input/output with Schmitt-trigger
- port P4, P4.7, input/output with Schmitt-trigger
- port P5, P5.0, input/output with Schmitt-trigger
- port P5, P5.1, input/output with Schmitt-trigger
- port P5, P5.2 to P5.4, input/output with Schmitt-trigger
- port P5, P5.5 to P5.7, input/output with Schmitt-trigger
- port P6, P6.0, P6.2, and P6.4, input/output with Schmitt-trigger
- port P6, P6.1, input/output with Schmitt-trigger
- port P6, P6.3, input/output with Schmitt-trigger
- port P6, P6.5, input/output with Schmitt-trigger
- port P6, P6.6, input/output with Schmitt-trigger
- port P6, P6.7, input/output with Schmitt-trigger
- VeREF+/DAC0
- 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
- Corrections to MSP430FG43x Data Sheet (SLAS380C)
MSP430FG43x
MIXED SIGNAL MICROCONTROLLER
SLAS380C − APRIL 2004 − REVISED MARCH 2011
69
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
JTAG fuse check mode
MSP430 devices that have the fuse on the TDI/TCLK terminal have a fuse check mode that tests the continuity
of the fuse the first time the JTAG port is accessed after a power-on reset (POR). When activated, a fuse check
current (I
(TF)
) of 1 mA at 3 V can flow from the TDI/TCLK pin to ground if the fuse is not burned. Care must be
taken to avoid accidentally activating the fuse check mode and increasing overall system power consumption.
Activation of the fuse check mode occurs with the first negative edge on the TMS pin after power up or if the
TMS is being held low during power up. The second positive edge on the TMS pin deactivates the fuse check
mode. After deactivation, the fuse check mode remains inactive until another POR occurs. After each POR the
fuse check mode has the potential to be activated.
The fuse check current only flows when the fuse check mode is active and the TMS pin is in a low state (see
Figure 32). Therefore, the additional current flow can be prevented by holding the TMS pin high (default
condition). The JTAG pins are terminated internally and therefore do not require external termination.
Time TMS Goes Low After POR
TMS
I
(TF)
I
TDI/TCLK
Figure 32. Fuse Check Mode Current