
DPC31 HW
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DPC31 HW Description
Version V1.0 Page 63
Copyright (C) Siemens AG 2000. All rights reserved. 12/00
XTAL1_CLK
XTAL2C2
C1
Q1
OSC PLL
MUX
XPLLEN
CLK_UNIT
CLKOUT1X2
AVDD
AGND
CLKOUT1X4
DPC31
Figure 7.8-1:
Block Diagram of Clock Supply
Pin Name Pad Comment
XTAL1_CLK I Quartz connection / direct clock input (for syn. mode)
XTAL2 O Quartz connection
XPLLEN I Selection PLL or clock input
CLKOUT1X2 O Half of the internal clock (clock for In Circuit Emulator)
CLKOUT1X4 O Quarter of the internal clock
Table 7.8-1
: Pins for the Clock Supply
Component Value
Q1 12 MHz
C1 35 pF
C2 35 pF
Table 7.8-2:
Component Values of Oscillator Wiring
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