r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 778

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 11 16-Bit Timer Pulse Unit (TPU)
11.5
There are three kinds of TPU interrupt source: TGR input capture/compare match, TCNT
overflow, and TCNT underflow. Each interrupt source has its own status flag and enable/disable
bit, allowing generation of interrupt request signals to be enabled or disabled individually.
When an interrupt request is generated, the corresponding status flag in TSR is set to 1. If the
corresponding enable/disable bit in TIER is set to 1 at this time, an interrupt is requested. The
interrupt request is cleared by clearing the status flag to 0.
Relative channel priorities can be changed by the interrupt controller, but the priority order within
a channel is fixed. For details, see section 5, Interrupt Controller.
Table 11.37 lists the TPU interrupt sources.
Rev. 1.00 Sep. 19, 2008 Page 750 of 1270
REJ09B0466-0100
TCLKA
TCLKB
Interrupt Sources
Figure 11.30 Phase Counting Mode Application Example
Edge
detection
circuit
TGRB_0 (pulse width capture)
TGRD_0 (buffer operation)
(position cycle capture)
(position control cycle)
(speed cycle capture)
(speed control cycle)
TGRA_1
TGRB_1
TGRA_0
TGRC_0
TCNT_1
TCNT_0
Channel 1
Channel 0
+
+
-
-