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R01UH0336EJ0102 Rev.1.02
Page 428 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 13 Timer Array Unit B (TAUB)
13.9.2
Event Mode
The value of data register (TAUBnCDRm register) is loaded as soon as
TAUBnTS.TAUBnTSm is set to 1. The counter also starts immediately. The
value of data register (TAUBnCDRm register) increments with subsequent
count clocks.
Figure 13-12
Start Timing in Event Mode
13.9.3
Other Operating Modes
In other operating modes, the counter operation start timing is triggered only
upon detection of a valid edge of TAUBnTTINm. Once the counter starts, the
value of data register (TAUBnCDRm register) is also loaded. The count clock
cycles, which is irrelevant to start of counter operation, determine the
frequency with which all operations take place.
Figure 13-13
Start Timing in Other Operating Modes
TAUBnCDRm value
TAUBnCDRm value - 1
Initial value
TAUBnCNTm
PCLK
TAUBnTE.TAUBnTEm
Count clock
Start trigger
detection signal
TAUBnTS.TAUBnTSm
(Write)
PCLK
Count clock
TAUBnTE.TAUBnTEm
Start trigger
detection signal
TAUBnCNTm
Load value
Initial value
TAUBnTTINm
edge detection signal
Start trigger wait state
TAUBnTS.TAUBnTSm
(Write)