PNX1700EH/G,557 Trident Microsystems, Inc., PNX1700EH/G,557 Datasheet - Page 149
PNX1700EH/G,557
Manufacturer Part Number
PNX1700EH/G,557
Description
Manufacturer
Trident Microsystems, Inc.
Datasheet
1.PNX1700EHG557.pdf
(832 pages)
Specifications of PNX1700EH/G,557
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Philips Semiconductors
Volume 1 of 1
PNX17XX_SER_1
Preliminary 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 PNX17xx Series system is reset. Both
are referred as software reset. As seen in the previous
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 TM5250 CPU releases it. The internal counter uses the initial 27
MHz to estimate 100 s.
Rev. 1 — 17 March 2006
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Section 3.1
PNX17xx Series
Chapter 4: Reset
it is required to
4-8
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