ST92T163 ST Microelectronics, ST92T163 Datasheet - Page 86

• Manufacturer Part Number: ST92T163
• Description: 8/16-BIT FULL SPEED USB MCU FOR COMPOSITE DEVICES WITH 16 ENDPOINTS
• Manufacturer: ST Microelectronics

ST92163 - RESET AND CLOCK CONTROL UNIT (RCCU)
5.6 RESET/STOP MANAGER
The Reset/Stop Manager resets the MCU when
one of the three following events occurs:
– A Hardware reset, initiated by a low level on the
– A Software reset, initiated by a HALT instruction
– A Watchdog end of count condition.
The event which caused the last Reset is flagged
in the CLK_FLAG register, by setting the SOF-
Figure 45. Oscillator Start-up Sequence and Reset Timing
86/224
Reset pin.
(when enabled).
V
V
OSCIN
OSCOUT
INTCLK
RESET
PIN
DD
DD
MIN
MAX
10ms
TRES or the WDGRES bits respectively; a hard-
ware initiated reset will leave both these bits reset.
The hardware reset overrides all other conditions
and forces the ST9 to the reset state. During Re-
set, the internal registers are set to their reset val-
ues, where these are defined, and the I/O pins are
set to the Bidirectional Weak Pull-up mode.
Reset is asynchronous: as soon as the reset pin is
driven low, a Reset cycle is initiated.
VR02085A