psf2115 ETC-unknow, psf2115 Datasheet - Page 107

• Manufacturer Part Number: psf2115
• Description: Isdn Adapter Circuit Ipac
• Manufacturer: ETC-unknow

figure 45).
This behaviour might cause a short negative pulse on the DRQR/DRQT-line depending
on the timing of DACK vs. RD/WR.
If a pulsed DACK-signal is used the DRQR/DRQT-signal will be deactivated with the
rising edge of RD/WR-operation (n-1) but activated again with the following rising edge
of DACK. With the next falling edge of DACK (DACK ‘n’) it will be deactivated again (see
Semiconductor Group
107
Functional Description
PSB 2115
PSF 2115
11.97