HD6433045 HITACHI [Hitachi Semiconductor], HD6433045 Datasheet - Page 429

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

Example of Non-Overlapping TPC Output (Example of Four-Phase Complementary Non-
Overlapping Output): Figure 11-7 shows an example of the use of TPC output for four-phase
complementary non-overlapping pulse output.
Figure 11-7 Non-Overlapping TPC Output Example (Four-Phase Complementary
This operation example is described below.
•
•
•
•
GRA
GRB
H'0000
NDRB
PBDR
TP
TP
TP
TP
TP
TP
TP
TP
The output trigger ITU channel is set up so that GRA and GRB are output compare registers and the
counter will be cleared by compare match B. The TPC output trigger period is set in GRB. The non-
overlap margin is set in GRA. The IMIEA bit is set to 1 in TIER to enable IMFA interrupts.
H'FF is written in PBDDR and NDERB, and bits G3CMS1, G3CMS0, G2CMS1, and G2CMS0 are set
in TPCR to select compare match in the ITU channel set up in step 1 as the output trigger.
Bits G3NOV and G2NOV are set to 1 in TPMR to select non-overlapping output. Output data H'95 is
written in NDRB.
The timer counter in this ITU channel is started. When compare match B occurs, outputs change from
1 to 0. When compare match A occurs, outputs change from 0 to 1 (the change from 0 to 1 is delayed
by the value of GRA). The IMFA interrupt service routine writes the next output data (H'65) in NDRB.
Four-phase complementary non-overlapping pulse output can be obtained by writing H'59, H'56, H'95…
at successive IMFA interrupts. If the DMAC is set for activation by this interrupt, pulse output can be
obtained without loading the CPU.
15
14
13
12
11
10
9
8
TCNT value
TCNT
95
00
95
65
05
Non-Overlapping Pulse Output)
Non-overlap margin
65
59
41
59
417
56
50
56
95
14
95
65
05
65
Time