TMP92CF30
2009-06-12
92CF30-277
(3) 16-bit programmable pulse generation (PPG) output mode
Square wave pulses can be generated at any frequency and duty ratio. The output
pulse may be either low active or high active.
The PPG mode is obtained by inversion of the timer flip-flop TB0FF0 that is enabled
by the match of the up counter UC10 with timer register TB0RG0H/L or TB0RG1H/L
and is output to TB0OUT0. In this mode the following conditions must be satisfied.
(Value set in TB0RG0H/L) < (Value set in TB0RG1H/L)
Figure 3.13.8 Programmable Pulse Generation (PPG) Output Waveforms
When the TB0RG0H/L double buffer is enabled in this mode, the value of register
buffer 10 will be shifted into TB0RG0H/L at match with TB0RG1H/L. This feature
facilitates the handling of low-duty waves.
Figure 3.13.9 Operation of double buffer
Note: The values that can be set in TBxRGxH/L range from 0001h to 0000h (equivalent to 10000h). If the maximum
value 000h is set, the match-detect signal goes active when the up-counter overflows.
Match with TB0RG0H/L
(INTTB00 interrupt)
Match with TB0RG1H/L
(INTTB01 interrupt)
TB0OUT0 pin
Q
2
Q
1
Match with TB0RG0H/L
Q
3
Q
2
Up conter
=
Q
1
Up
counter
=
Q
2
Shift into TB0RG1H/L
TB0RG0H/L
(Value to be compared)
Register buffer 10
Match with TB0RG1H/L
Write into TB0RG0H/L
Содержание TLCS-900/H1 Series
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