UPD78F9502MA-CAC-A NEC, UPD78F9502MA-CAC-A Datasheet - Page 83

• Manufacturer Part Number: UPD78F9502MA-CAC-A
• Description: 8BIT MCU, 4K FLASH, 128B RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F9502MA-CAC-A

• Controller Family/series: UPD78F
• No. Of I/o's: 8
• Ram Memory Size: 128Byte
• Cpu Speed: 10MHz
• No. Of Timers: 2
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

8-bit timer counter H1
<1> The count operation is enabled by setting the TMHE1 bit to 1. Start 8-bit timer counter H1 by masking one
<2> When the values of 8-bit timer counter H1 and the CMP01 register match, the TOH1 output level is inverted,
<3> When the values of 8-bit timer counter H1 and the CMP11 register match, the level of the TOH1 output is
<4> Clearing the TMHE1 bit to 0 during timer H1 operation makes the INTTMH1 signal and TOH1 output inactive.
(TOLEV1 = 0)
(TOLEV1 = 1)
Count clock
count clock to count up. At this time, TOH1 output remains inactive (when TOLEV1 = 0).
the value of 8-bit timer counter H1 is cleared, and the INTTMH1 signal is output.
returned. At this time, the 8-bit timer counter value is not cleared and the INTTMH1 signal is not output.
INTTMH1
TMHE1
CMP01
CMP11
TOH1
TOH1
<1>
00H 01H
Figure 6-9. Operation Timing in PWM Output Mode (1/4)
(a) Basic operation (00H < CMP11 < CMP01 < FFH)
Preliminary User’s Manual U18681EJ1V0UD
A5H 00H 01H 02H
CHAPTER 6 8-BIT TIMER H1
<2>
A5H
01H
<3>
A5H 00H
01H 02H
A5H 00H
<4>
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