PEB 2091
PEF 2091
Pin Descriptions
Pin No.
P-LCC-44 T-QFP64
M-QFP64
Pin No.
Symbol Input (I)
Output (O)
Function
11
23
XIN
I
Crystal IN: External 15.36-MHz clock
signal or 15.36-MHz crystal is
connected. In case a crystal is
connected, suitable load capacitances
should be connected in parallel. Their
value depends on the crystal chosen
and board Layout. See "Oscillator
Circuit and Crystal", page 252 for
details
32
54
CLS
O
Clock Signal: In the NT modes this
clock is synchronized to U-Interface.
Used to synchronize external PLL or to
clock S-Interface devices. In the NT,
NT-Auto Activation, COT and TE
modes a 7.68 MHz clock is provided
on this pin.
In the PBX- and in the LT-RP modes a
512 kHz clock is provided.
In the NT-RP mode a 15.36 MHz clock
is provided (not synchronized to
U-Interface).
In the LT mode the clock on CLS is not
defined and should therefore be left
unconnected.
37
60
MCLK
O
Microprocessor clock output
(Multiplexed, demultiplexed and serial
modes): provided with four
programmable clock rates: 7.68 MHz,
3.84 MHz, 1.92 MHz and 0.96 MHz.
2.2.2.9 Miscellaneous Function Pins
18
35
RST
O
Reset output (Multiplexed,
demultiplexed and serial modes): Low
active.
Semiconductor Group
46
Data Sheet 01.99
INFINEON [ Infineon ]
