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MC68HC705MC4MP Fiches technique(PDF) 50 Page - Freescale Semiconductor, Inc

No de pièce MC68HC705MC4MP
Description  General Release Specification
PDF  180 Pages
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC68HC705MC4MP Fiches technique(HTML) 50 Page - Freescale Semiconductor, Inc

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Resets
MC68HC705MC4 — Rev. 2.0
Resets
Figure 5-1. Reset Block Diagram
5.3 External Reset
The RESET input is the only external reset and is connected to an
internal Schmitt trigger. The external reset occurs whenever the RESET
input is driven below the lower threshold and remains in reset until the
RESET pin rises above the upper threshold. The upper and lower
thresholds are given in Section 14. Electrical Specifications.
5.4 Internal Resets
The three internally generated resets are the illegal address, the initial
power-on reset (POR) function, and the computer operating properly
(COP) watchdog timer function.
RESET
RST
POWER-ON
RESET
(POR)
RESET
COP
WATCHDOG
(COPR)
VDD
OSC
DATA
ADDRESS
LATCH
TO CPU AND
PERIPHERALS
INTERNAL CLOCK
INSTRUCTION
LOAD CLOCK
ADDRESS
ILLEGAL
ADDRESS
4-CYCLE
COUNTER
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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