UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 264

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

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<1> When TMHE1 = 1 is set, 8-bit timer H1 starts a count operation. At that time, the carrier clock is held at the
<2> When the count value of 8-bit timer counter H1 matches the CMP01 register value, 8-bit timer counter H1 is
<3> The CMP11 register can be rewritten during 8-bit timer H1 operation, however, the changed value (L) is
<4> When the count value of 8-bit timer counter H1 and the CMP11 register value before the change (M) match,
<5> The timing at which the count value of 8-bit timer counter H1 and the CMP11 register value match again is
8-bit timer counter
H1 count value
inactive level.
cleared and the INTTMH1 signal is output.
latched. The CMP11 register is changed when the count value of 8-bit timer counter H1 and the CMP11
register value before the change (M) match (<3>’).
the INTTMH1 signal is output, the carrier signal is inverted, and 8-bit timer counter H1 is cleared to 00H.
indicated by the value after the change (L).
8-bit timer H1
Carrier clock
count clock
INTTMH1
TMHE1
CMP01
CMP11
Figure 9-15. Carrier Generator Mode Operation Timing (3/3)
<1>
00H 01H
(c) Operation when CMP11 is changed
CHAPTER 9 8-BIT TIMERS H0 AND H1
M
<2>
N
User’s Manual U17554EJ4V0UD
<3>
00H 01H
M (L)
M
<4>
<3>’
00H
N
L
N
00H
01H
L
<5>
00H