HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 383

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Figure 10-51 shows an example in which GRA is set to function as an input capture register
buffered by BRA, and TCNT is cleared by input capture B. The falling edge is selected as the
input capture edge at TIOCB. Both edges are selected as input capture edges at TIOCA. Because
of the buffer setting, when the TCNT value is captured into GRA at input capture A, the previous
GRA value is simultaneously transferred to BRA. Figure 10-52 shows the transfer timing.
H'0180
H'0160
H'0005
H'0000
TIOCB
TIOCA
GRA
BRA
GRB
Figure 10-51 Register Buffering (Example 2: Buffering of Input Capture Register)
TCNT value
H'0005
Input capture A
371
H'0005
H'0160
H'0180
Counter cleared by
input capture B
H'0160
Time