Panasonic KX-TDA0187, Manual

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