UPD78F0535GB(T)-UEU-A NEC, UPD78F0535GB(T)-UEU-A Datasheet - Page 291
UPD78F0535GB(T)-UEU-A
Manufacturer Part Number
UPD78F0535GB(T)-UEU-A
Description
8BIT MCU, 60K FLASH, 3KB RAM, LQFP
Manufacturer
NEC
Datasheet
1.UPD78F0535GBT-UEU-A.pdf
(773 pages)
Specifications of UPD78F0535GB(T)-UEU-A
Controller Family/series
UPD78
No. Of I/o's
55
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
60KB
Oscillator Type
External, Internal
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<R>
<1> When TMHE1 = 0 and TCE51 = 0, the 8-bit timer counter H1 operation is stopped.
<2> When TMHE1 = 1 is set, the 8-bit timer counter H1 starts a count operation. At that time, the carrier clock
<3> When the count value of the 8-bit timer counter H1 matches the CMP01 register value, the first INTTMH1
<4> When the count value of the 8-bit timer counter H1 matches the CMP11 register value, the INTTMH1 signal
<5> When the INTTM51 signal is generated, it is synchronized with the 8-bit timer H1 count clock and is output as
<6> The INTTM5H1 signal becomes the data transfer signal for the NRZB1 bit, and the NRZB1 bit value is
<7> When NRZ1 = 0 is set, the TOH1 output becomes low level.
Remark INTTM5H1 is an internal signal and not an interrupt source.
remains default.
signal is generated, the carrier clock signal is inverted, and the compare register to be compared with the 8-
bit timer counter H1 is switched from the CMP01 register to the CMP11 register. The 8-bit timer counter H1
is cleared to 00H.
is generated, the carrier clock signal is inverted, and the compare register to be compared with the 8-bit timer
counter H1 is switched from the CMP11 register to the CMP01 register. The 8-bit timer counter H1 is cleared
to 00H. By performing procedures <3> and <4> repeatedly, a carrier clock with duty fixed to 50% is
generated.
the INTTM5H1 signal.
transferred to the NRZ1 bit.
8-bit timer counter
TM51 count value
H1 count value
8-bit timer H1
Carrier clock
8-bit timer 51
Carrier clock
count clock
count clock
INTTM5H1
INTTMH1
TMHE11
INTTM51
CMP01
CMP11
NRZB1
TCE51
Figure 9-15. Carrier Generator Mode Operation Timing (1/3)
NRZ1
CR51
TOH1
<1><2>
00H
(a) Operation when CMP01 = N, CMP11 = N
00H 01H
0
CHAPTER 9 8-BIT TIMERS H0 AND H1
0
N 00H
User’s Manual U17260EJ6V0UD
<3>
K
K 00H 01H
1
<5>
N 00H
<4>
1
<6>
L
L 00H 01H
0
<7>
N 00H
N
N
0
N 00H
M 00H 01H
M
1
1
N 00H
N
0
00H 01H
N
0
N
291
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