TMP92CF30
2009-06-12
92CF30-496
3.19.6 Use Cautions
1.
Debounce circuit
The CPU system clock is used in debounce circuit. Therefore, when no clock is
supplied to the CPU (during IDLE1 and STOP modes), the debounce circuit does
not operate. Because of this, interrupts bypassing the debounce circuit are not
generated either.
When using a startup that uses the TSI starting from the state during IDLE1
and STOP modes, set the debounce circuit to disable before entering the HALT
state. (TSICR1<DBC7>= “0”)
2.
Port setting
When an intermediate voltage of 0 V to AVcc is converted using the AD converter,
the intermediate voltage is also applied to the normal C-MOS input gates (P96 and
P97) due to the circuit structure.
Take measures against the flow-through current to Port 96 and 97 by using
TSICR0<INGE>. At this time (TSICR0<INGE>= “1”). Note that blocking the input
to the C-MOS logics sets “1” at all times in TSICR0<PTST> that confirms a first
pen-touch.
Summary of Contents for TLCS-900/H1 Series
Page 652: ...TMP92CF30 2009 06 12 92CF30 650 ...