32170 Datasheet, PDF (426/881 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER

10
MULTIJUNCTION TIMERS
10.4 TIO (Input/Output-related 16-bit Timer)
Enabled
Underflow
(by writing to enable bit (first time)
or by external input)
Underflow
(second time)
Count clock
Enable bit
H’FFFF
Counter
H’A000
H’E000
Down-count
starting from
counter
set value
H’DFFF
Down-count
starting from
reload 0 register
set value
H’DFFF
Down-count
starting from
reload 0 register
set value
H’0000
Reload 0 register H’E000
Reload 1 register ^{(Not used)}
F/F output
TIO interrupt
by underflow
Data inverted
by enable
Data inverted
by underflow
Note: This diagram does not show detail timing information.
Figure 10.4.16 Typical Operation in TIO Continuous Output Mode (without Correction
Function)
10-139
32170/32174 Group User's Manual (Rev. 2.1)