UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 283

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

<R>
<R>
<R>
<R>
8-bit timer counter Hn
<1> The count operation is enabled by setting the TMHEn bit to 1. Start the 8-bit timer counter Hn by masking
<2> When the values of the 8-bit timer counter Hn and the CMP0n register match, an active level is output. At
<3> When the values of the 8-bit timer counter Hn and the CMP1n register match, an inactive level is output. At
<4> Clearing the TMHEn bit to 0 during timer Hn operation sets the INTTMHn signal to the default and PWM
(TOLEVn = 0)
(TOLEVn = 1)
Count clock
one count clock to count up. At this time, PWM output outputs an inactive level.
this time, the value of the 8-bit timer counter Hn is cleared, and the INTTMHn signal is output.
this time, the 8-bit timer counter value is not cleared and the INTTMHn signal is not output.
output to an inactive level.
Remark n = 0, 1
INTTMHn
TMHEn
CMP0n
CMP1n
TOHn
TOHn
<1>
00H 01H
Figure 9-12. Operation Timing in PWM Output Mode (1/4)
CHAPTER 9 8-BIT TIMERS H0 AND H1
A5H 00H 01H 02H
User’s Manual U17260EJ6V0UD
<2>
(a) Basic operation
A5H
01H
<3>
A5H 00H
01H 02H
A5H 00H
<4>
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