HD6433045 HITACHI [Hitachi Semiconductor], HD6433045 Datasheet - Page 386

• Manufacturer Part Number: HD6433045
• Description: Hitachi Single-Chip Microcomputer
• Manufacturer: HITACHI [Hitachi Semiconductor]

10.4.9 ITU Output Timing
The ITU outputs from channels 3 and 4 can be disabled by bit settings in TOER or by an external
trigger, or inverted by bit settings in TOCR.
Timing of Enabling and Disabling of ITU Output by TOER: In this example an ITU output is
disabled by clearing a master enable bit to 0 in TOER. An arbitrary value can be output by
appropriate settings of the data register (DR) and data direction register (DDR) of the
corresponding input/output port. Figure 10-54 illustrates the timing of the enabling and disabling
of ITU output by TOER.
ø
Address bus
TOER
ITU output pin
Figure 10-54 Timing of Disabling of ITU Output by Writing to TOER (Example)
T
1
Timer output
TOER address
T
ITU output
2
T
3
374
I/O port
Generic input/output