Section 10 16-Bit Timer Pulse Unit (TPU)
Rev. 1.00 Apr. 28, 2008 Page 288 of 994
REJ09B0452-0100
10.6 Interrupts
10.6.1 Interrupt
Source and Priority
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/disabled
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 10.25 lists the TPU interrupt sources.
Table 10.25 TPU Interrupts
Channel Name
Interrupt
Source Interrupt
Flag
Priority
*
TGI0A
TGRA_0 input capture/compare match
TGFA
High
TGI0B
TGRB_0 input capture/compare match
TGFB
TGI0C
TGRC_0 input capture/compare match
TGFC
TGI0D
TGRD_0 input capture/compare match
TGFD
0
TCI0V
TCNT_0 overflow
TCFV
TGI1A
TGRA_1 input capture/compare match
TGFA
TGI1B
TGRB_1 input capture/compare match
TGFB
TCI1V
TCNT_1 overflow
TCFV
1
TCI1U
TCNT_1 underflow
TCFU
TGI2A
TGRA_2 input capture/compare match
TGFA
TGI2B
TGRB_2 input capture/compare match
TGFB
TCI2V
TCNT_2 overflow
TCFV
2
TCI2U
TCNT_2 underflow
TCFU
Low
Note:
*
This table shows the initial state immediately after a reset. The relative channel
priorities
can be changed by the interrupt controller.
Summary of Contents for H8S/2100 Series
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Page 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Page 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Page 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Page 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
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Page 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Page 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Page 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
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Page 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
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