Reset Circuit - Cypress FR81S CY91F52 Series Recommendation For Hardware Setup

3.7

Reset circuit

All hard reset events are extended by the hard reset extension circuit to guarantee the stabilization of the Low Voltage
Detector (LVD) and complete reset of the device before program execution starts. The reset signal at RSTX pin goes
through a noise filter to avoid any spike on the reset input. Please note there are two types of reset level (RST and
INIT).
www.cypress.com
Figure 11. Block Diagram of reset extension circuit
Document No. 002-09375 Rev. *B
Recommendation for Hardware Setup 32-Bit FR81S Family
13