r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 774

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 11 16-Bit Timer Pulse Unit (TPU)
11.8
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 12 TGRA input capture/compare match interrupts can be used as A/D
converter conversion start sources, one for each channel.
11.9
11.9.1
(1)
Figure 11.31 shows TCNT count timing in internal clock operation, and figure 11.32 shows TCNT
count timing in external clock operation.
Rev. 1.00 Sep. 19, 2008 Page 744 of 1342
REJ09B0467-0100
TCNT Count Timing
φ
Internal clock
TCNT
input clock
TCNT
A/D Converter Activation
Operation Timing
Input/Output Timing
Figure 11.31 Count Timing in Internal Clock Operation
N – 1
Falling edge
N
Rising edge
N + 1
N + 2