Texas Instruments MSP430x1xx - Manual (Page 52)

Basic Hints for Low - Power Applications
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3.6 Basic Hints for Low - Power Applications
There are some basic practices to follow when current consumption is a critical
part of a system application:
- Switch off analog circuitry when possible.
- Select the lowest possible operating frequency for the core and the
individual peripheral module.
- Use the interrupt driven software; the program starts execution rapidly.
- Tie all unused inputs to an applicable voltage level. The list below defines
the correct termination for all unused pins.
Pin Potential Comment
-
AV
CC
: DV
CC
- AV
SS
: DV
SS
- Xout: open
- XIN DV
SS
- XT2IN DV
SS
13x and 14x devices
- XT2OUT open 13x and 14x devices
- Px.0 to Px.7: open Unused ports switched to port function and
output direction
- RST/NMI: DV
CC
resp.V
CC
Pullup resistor 100k
- Test/V
PP
DV
SS
11x devices
- Test DV
SS
11x1 devices
- TDO:
- TDI: Refer to device specific datasheets for the correct termina-
- TMS:
tion of these pins.
- TCK: