peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 167

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

Figure 2-46 PFS Signal Selection
• ELIC0 and ELIC1 PCM interface clocks:
Semiconductor Group
– ELIC0 and ELIC1 receive the same PDC and PFS clocks.
– PDC has 3 optional frequencies: 2.048 MHz, 4.096 MHz and 8.192 MHz, which are
– For correct functionality, the PDC frequency must be selected according to the
– Both ELICs are connected to the same PDC.
– PDC frequency and configuration are determined by register CCSEL0 bits 4…2.
– The selected PDC functions as the ELIC0 watch-dog timer clock, which also serves
produced from the 16.384 MHz input clock or driven by external clocks via IO pads.
See Figure 2-47.
ELICs operation mode.
During reset, PDC frequency is driven from an internal 8.192 MHz clock. No PDC
will be driven on IO (even though CCLSE0[4] =1) before CCSEL0 is written.
as the DOC watch-dog timer (the ELIC1 watch-dog timer exists but unused).
CCSEL[4]
CLK 16:8
ELIC
64
4
2-121
R
MUX
PFS
Functional Block Description
Note:
PFS is DOC’s
input pin.
ITS10100
PFS
internal clocks
PEB 20560
2003-08