HD6432621 Hitachi, HD6432621 Datasheet - Page 380
HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
(1069 pages)
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Examples of Cascaded Operation: Figure 10-22 illustrates the operation when counting upon
TCNT2 overflow/underflow has been set for TCNT1, TGR1A and TGR2A have been designated
as input capture registers, and TIOC pin rising edge has been selected.
When a rising edge is input to the TIOCA1 and TIOCA2 pins simultaneously, the upper 16 bits of
the 32-bit data are transferred to TGR1A, and the lower 16 bits to TGR2A.
Figure 10-23 illustrates the operation when counting upon TCNT2 overflow/underflow has been
set for TCNT1, and phase counting mode has been designated for channel 2.
TCNT1 is incremented by TCNT2 overflow and decremented by TCNT2 underflow.
336
TCNT1
clock
TCNT1
TCNT2
clock
TCNT2
TIOCA1,
TIOCA2
TGR1A
TGR2A
TCLKA
TCLKB
TCNT2
TCNT1
H'FFFF
H'03A1
FFFD
Figure 10-22 Example of Cascaded Operation (1)
Figure 10-23 Example of Cascaded Operation (2)
0000
FFFE
FFFF
0000
H'0000
0001
H'03A2
H'03A2
H'0000
0001
0002
0001
0000
H'0001
FFFF
0000
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