Technical data

4.13 Service/Programming
Pin Name Direction Function
58 SERVICE Input Flash programming enable signal
The SERVICE interface is flash programming enable input. The SERVICE pin is driven
active high by the host application using either a logic control input or applying a dc
voltage (common in legacy applications) to begin a flash download. This pin should
be pulled low or grounded during normal use.
The SERVICE signal drives an N-channel FET switch which has a resistive divider on
the input.
Figure 24: SERVICE Pin Interface
Signal Mode Value Unit
Minimum input voltage 2.5 V
Active High
Maximum input voltage 12.0
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V
SERVICE
Inactive Low Maximum input voltage 0.8 V
GR64 Integrators’ Manual
Page: 70/106