upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 148
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upd78f0730
Manufacturer Part Number
upd78f0730
Description
8-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0730.pdf
(518 pages)
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(2) Free-running timer mode operation
148
Compare match interrupt
Compare match interrupt
This is an application example where two compare registers are used in the free-running timer mode.
The output level of the TO00 pin is reversed each time the count value of TM00 matches the set value of CR000
or CR010. When the count value matches the register value, the INTTM000 or INTTM010 signal is generated.
(CR000: compare register, CR010: capture register)
TI000 pin
(TMC003, TMC002)
Compare register
Compare register
TO00 pin output
TM00 register
Operable bits
(INTTM000)
(INTTM010)
OVF00 bit
Count clock
(CR000)
(CR010)
FFFFH
0000H
detection
TMC003, TMC002
Edge
Operable bits
Figure 6-33. Timing Example of Free-Running Timer Mode
• TOC00 = 13H, PRM00 = 00H, CRC00 = 00H, TMC00 = 04H
Figure 6-34. Block Diagram of Free-Running Timer Mode
(CR000: Compare Register, CR010: Compare Register)
00
(CR000: Compare Register, CR010: Capture Register)
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
Capture signal
01
M
N
Preliminary User’s Manual U19014EJ1V0UD
N
M
0 write clear
Capture register
Timer counter
(CR010)
(TM00)
N
Compare register
M
(CR000)
0 write clear
Match signal
N
M
controller
Output
0 write clear
N
M
Interrupt signal
(INTTM000)
Interrupt signal
(INTTM010)
TO00 pin
0 write clear
00
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