Hello,
the d/s (page 11) stated:
"Oscillator and System Clock
The clock system is supported by the basic clock module that includes support for a 32768-Hz watch crystal
oscillator, an internal very-low-power low-frequency oscillator and an internal digitally-controlled oscillator (DCO).
The basic clock module is designed to meet the requirements of both low system cost and low power
consumption. The internal DCO provides a fast turn-on clock source and stabilizes in less than 1 μs. The basic
clock module provides the following clock signals:
• Auxiliary clock (ACLK), sourced either from a 32768-Hz watch crystal or the internal LF (VLOCLK) oscillator.
• Main clock (MCLK), the system clock used by the CPU.
• Sub-Main clock (SMCLK), the sub-system clock used by the peripheral modules.
NOTE
The LFXT1 oscillator is not available. LFXT1Sx bits of the BCSCTL3 register should be
configured to use VLOCLK (see the MSP430x2xx Family User's Guide (SLAU144))."
How is it possible that the LFXT1 is not available but the a 32KHz crystal can be used?
Regards, Holger
