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NEC 78K/0 Series - External Trigger Functions

NEC 78K/0 Series
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CHAPTER 3 INSTALLATION
Users Manual U13731EJ3V0UM
32
3.2 External Trigger Functions
(1) EXTOUT
At the occurrence of a break event, the EXTOUT pin on the emulation board outputs a low level for 1.3
µ
s.
Caution Because the output is open drain, connect a pull-up resistor in the target system.
(2) EXTIN
The EXTIN pin on the emulation board can be used to input an event signal. Enter high-level pulse signals for
two or more CPU clocks.
Caution For the electrical specifications, refer to Table 3-1.
Table 3-1. Electrical Specifications
Parameter MIN. [V] MAX. [V]
High-level input voltage
Target voltage × 0.7
Target voltage
Low-level input voltage 0
Target voltage × 0.3

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