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Reset Type
Reset to ASIC (IC2)
Reset to CPU (IC1)
Reset to Flash
Reset to T1-IC
(IC302)
Reset to DSP
(IC303)
OR condition of the following Reset
Power on reset
Hardware reset from the
EC bus
Software reset from the
EC bus
Software reset from the
EC bus
Software reset from the
EC bus
Software reset from the
CPU (IC1)
Software reset from the
CPU (IC1)
Fig.5.8 A reset schematic diagram
The way of Reset
Reset by the reset IC
Reset IC specifications
Power Supply voltage : 5V
Reset voltage : 4.5V
Reset delay time : 50msec
Reset by EC_RST
Cancel after a given length of
time
ASIC (IC2) local reset register
control
Same as the reset to CPU (IC1) L active Over 500nsec
ASIC (IC2) port P2[0] control
ASIC (IC2) port P2[1] control
26
Specification
L active
Over 10msec
Over 10msec
16cycles after EC_CLK
about 2usec
L active Over 10msec
to stable PLL)
L active Over 1
L active Over 50
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