KX-NCP1188XJ - Panasonic PBX Service Manual (repair manual). Page 14

14

A reset to CPU (IC1) (and the device under the control of CPU (IC1)) in this card is dominant in a reset from the main frame
(MPR), and normally it is only available for software command reset or hardware reset using ASIC (IC2) from MPR. The power
on reset circuit in this card is for the reset of ASIC (IC2) in a hot plug.

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 LPR (CPU (IC1))

Software reset from the EC bus

ASIC (IC2) local reset register control

L  active  Over  10msec  (up  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 E1-IC (IC302)

Software reset from the CPU (IC1)

ASIC (IC2) port P2[0] control

L active Over 1

µmsec

Reset to DSP (IC303) 

Software reset from the CPU (IC1)

ASIC (IC2) port P2[1] control

L active Over 50

µmsec