H8S-2258 Datasheet, PDF (512/1071 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2200 Series

Section 11 16-Bit Timer Pulse Unit (TPU)
11.8 A/D Converter Activation
The A/D converter can be activated by the TGRA input capture/compare match for a channel.
If the TTGE bit in TIER is set to 1 when the TGFA flag in TSR is set to 1 by the occurrence of a
TGRA input capture/compare match on a particular channel, a request to start A/D conversion is
sent to the A/D converter. If the TPU conversion start trigger has been selected on the A/D
converter side at this time, A/D conversion is started.
In the TPU, a total of six TGRA input capture/compare match interrupts can be used as A/D
converter conversion start sources, one for each channel.
11.9 Operation Timing
11.9.1 Input/Output Timing
TCNT Count Timing: Figure 11.31 shows TCNT count timing in internal clock operation, and
figure 11.32 shows TCNT count timing in external clock operation.
φ
Internal clock
Falling edge
Rising edge
TCNT
input clock
TCNT
N−1
N
N+1
N+2
Figure 11.31 Count Timing in Internal Clock Operation
Rev. 5.00 Aug 08, 2006 page 426 of 982
REJ09B0054-0500