upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 212
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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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TMHMD1
<1> Set each register.
<2> When TMHE1 = 1, 8-bit timer H1 starts counting.
<3> When TCE51 of 8-bit timer mode control register 51 (TMC51) is set to 1, 8-bit timer/event counter 51 starts
<4> After the count operation is enabled, the first compare register to be compared is the CMP01 register.
<5> When the count value of 8-bit timer counter H1 and the CMP11 register value match, the INTTMH1 signal
<6> By performing procedures <4> and <5> repeatedly, a carrier clock is generated.
<7> The INTTM51 signal is synchronized with count clock of the 8-bit timer H1 and output as the INTTM5H1
<8> Write the next value to the NRZB1 bit in the interrupt servicing program that has been started by the
<9> When the NRZ1 bit is high level, a carrier clock is output from the TOH1 pin.
Setting
(ii) CMP01 register setting
(iii) CMP11 register setting
(iv) TMCYC1 register setting
(v) TCL51 and TMC51 register setting
(i)
counting.
When the count value of 8-bit timer counter H1 and the CMP01 register value match, the INTTMH1 signal
is generated, 8-bit timer counter H1 is cleared. At the same time, the compare register to be compared with
8-bit timer counter H1 is switched from the CMP01 register to the CMP11 register.
is generated, 8-bit timer counter H1 is cleared. At the same time, the compare register to be compared with
8-bit timer counter H1 is switched from the CMP11 register to the CMP01 register.
signal. The INTTM5H1 signal becomes the data transfer signal for the NRZB1 bit, and the NRZB1 bit value
is transferred to the NRZ1 bit.
INTTM5H1 interrupt or after timing has been checked by polling the interrupt request flag. Write data to
count the next time to the CR51 register.
TMHE1
0
• Compare value
• Compare value
• RMC1 = 1 ... Remote control output enable bit
• NRZB1 = 0/1 ... carrier output enable bit
• See 7.3 Registers Controlling 8-Bit Timer/Event Counters 50 and 51.
Setting 8-bit timer H mode register 1 (TMHMD1)
CKS12
0/1
Figure 8-12. Register Setting in Carrier Generator Mode
CKS11
0/1
CKS10
Preliminary User’s Manual U19014EJ1V0UD
0/1
CHAPTER 8 8-BIT TIMER H1
TMMD11
0
TMMD10 TOLEV1
1
0/1
TOEN1
1
Timer output enabled
Default setting of timer output level
Carrier generator mode selection
Count clock (f
Count operation stopped
CNT
) selection
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