HFC-SPCI Cologne Chip AG, HFC-SPCI Datasheet - Page 53
![no-image](/images/no-image-200.jpg)
HFC-SPCI
Manufacturer Part Number
HFC-SPCI
Description
Isdn S/t HDLC Basic Rate Controller
Manufacturer
Cologne Chip AG
Datasheet
1.HFC-SPCI.pdf
(64 pages)
- Current page: 53 of 64
- Download datasheet (2Mb)
7.3
Figure 11: Oscillator Circuitry
The values of C1, C2 and R1 depend on the used quartz.
For a load-free check of the oscillator frequency the C4O clock of the GCI/IOM2 bus should be
measured (HFC-S PCI as master, S/T interface deactivated, 4.096 MHz frequency intented on the C4IO).
7.4
Figure 12: EEPROM circuitry
6URbeQbi !)))
Oscillator circuitry
EEPROM circuitry
C 1
C 2
Q 1
R 1
R 2
O S C _ I N
O S C _ O U T
Part list:
Q1
R1
R2
C1, C2 47 pF
12.288 MHz quartz
0..50
1 M
:
:
%# _V &$
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