UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 232

• 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

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7.4.7 One-shot pulse output operation
register 0n (TMC0n) to 01 (free-running timer mode) or to 10 (clear & start mode entered by the TI00n pin valid edge)
and setting bit 5 (OSPE0n) of 16-bit timer output control register 0n (TOC0n) to 1.
clearing & starting of TM0n is triggered, and a pulse of the difference between the values of CR00n and CR01n is
output only once from the TO0n pin.
232
A one-shot pulse can be output by setting bits 3 and 2 (TMC0n3 and TMC0n2) of the 16-bit timer mode control
When bit 6 (OSPT0n) of TOC0n is set to 1 or when the valid edge is input to the TI00n pin during timer operation,
Cautions 1. Do not input the trigger again (setting OSPT0n to 1 or detecting the valid edge of the TI00n
Remarks 1. For the setting of the I/O pins, see 7.3 (5) Port mode register 0 (PM0).
TI00n edge detection
Remark n = 0:
OSPE0n bit
OSPT0n bit
2. For how to enable the INTTM00n signal interrupt, see CHAPTER 19 INTERRUPT FUNCTIONS.
2. To use only the setting of OSPT0n to 1 as the trigger of one-shot pulse output, do not change
n = 0, 1:
Count clock
pin) while the one-shot pulse is output. To output the one-shot pulse again, generate the
trigger after the current one-shot pulse output has completed.
the level of the TI00n pin or its alternate function port pin. Otherwise, the pulse will be
unexpectedly output.
TMC0n3, TMC0n2
µ
µ
Figure 7-48. Block Diagram of One-Shot Pulse Output Operation
PD78F0531, 78F0532, 78F0533
PD78F0534, 78F0535, 78F0536, 78F0537, 78F0537D
Operable bits
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 AND 01
User’s Manual U17260EJ6V0UD
Compare register
Timer counter
Clear
Match signal
(CR01n)
(TM0n)
Compare register
(CR00n)
Match signal
controller
Output
TO0n output
Interrupt signal
(INTTM00n)
Interrupt signal
(INTTM01n)
TO0n pin