External Trigger Functions - NEC 78K/0 Series User Manual

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.
Parameter
High-level input voltage
Low-level input voltage
32
CHAPTER 3 INSTALLATION
Table 3-1. Electrical Specifications
MIN. [V]
Target voltage × 0.7
0
User's Manual U13731EJ3V0UM
MAX. [V]
Target voltage
Target voltage × 0.3