HFC-S Cologne Chip AG, HFC-S Datasheet - Page 27

• Manufacturer Part Number: HFC-S
• Description: Isdn S/t HDLC Basic Rate Controller
• Manufacturer: Cologne Chip AG

HFC-S
Busy synchronisation with IOCHRDY
3.7.2
Figure 6: Function of IOCHRDY
Note 1:
The read/write data access is finished by an external processor after release of IOCHRDY.
Repeated status read can be avoided if the IOCHRDY output of the HFC-S is connected to the
/WAIT line of the external processor. If the HFC-S is accessed during a BUSY phase the processor
waits until the end of the BUSY phase.
March 1997
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