System Manual

GuidePort: System Manual 27. November 2000 Seite 15
Specification for the Reset Procedure between GuidePort/EMP and Mollie
Simplified hardware diagram:
Remark: Other lines of the GP/Mollie interface are not of interest for this subject.
1. Case: Power is switched on
When the 3.3 V power line becomes high the IC Max811 generates a ≈ 280 ms reset
impulse.
2. Case: Reset from Mollie (during power on)
receiver ready
power
285ms 40ms
DSP
reset
IRQA
Reset IC
Max 811
Reset for
DSP56303
Master
Reset
GPMollie
Reset line
from Mollie
IRQA of DSPInterrupt_1
3.3 VDC for digital circuit
10k
Vcc
reset from
Mollie
IRQA
DSP
reset
Tmr = 5 to 10us
285 ms
40ms
receiver ready