PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 148

• Manufacturer Part Number: PNX1500E
• Manufacturer: NXP Semiconductors

Specifications of PNX1500E

• Lead Free Status / Rohs Status: Not Compliant

NXP Semiconductors
Volume 1 of 1
PNX15XX_PNX952X_SER_N_4
Product data sheet
3.2 The Software Timing
Whenever a watchdog timer time-out occurs or when a software reset is requested by
writing to the RST_CTL.DO_SW_RST bit the PNX15xx/952x Series system is reset.
Both are referred as software reset. As seen in the previous
to hold the POR_IN_N or the RESET_IN_N signal for at least 100 s. Therefore the
software reset mechanism implements an internal counter that allows to assert the
peri_rst_n signal for 100 s. Similarly to the hardware reset the sys_rst_out_n is also
asserted until the TM3260 CPU releases it. The internal counter uses the initial 27
MHz to estimate 100 s.
Rev. 4.0 — 03 December 2007
PNX15xx/952x Series
Section 3.1
© NXP B.V. 2007. All rights reserved.
Chapter 4: Reset
it is required
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