HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 349

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

9.4.4
Buffer operation, provided for channels 0 and 3, enables TGRC and TGRD to be used as buffer
registers.
Buffer operation differs depending on whether TGR has been designated as an input capture
register or as a compare match register.
Table 9.5 shows the register combinations used in buffer operation.
Table 9.5
Channel
0
3
332
Buffer register
When TGR is an output compare register
When a compare match occurs, the value in the buffer register for the corresponding channel is
transferred to the timer general register.
This operation is illustrated in figure 9.16.
Buffer Operation
Register Combinations in Buffer Operation
Timer General Register
TGR0A
TGR0B
TGR3A
TGR3B
Figure 9.16 Compare Match Buffer Operation
Compare match signal
Timer general
register
Comparator
Buffer Register
TGR0C
TGR0D
TGR3C
TGR3D
TCNT