LSI Logic Confidential
6-3
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
Table 6.1
DMN-8600 Pin Descriptions
Name
Pin No.
Type
1
Description
System Services
The following pins provide the internal clock source, reset and power-down indications from the chip.
They are 3.3 V LVTTL compatible.
CLKI
A10
I
Clock. This input provides the timing reference for
internally generated DMN-8600 clocks. Nominally
13.5 or 27 MHz LVTTL signal or 13.5 MHz crystal,
this is internally multiplied to yield the internal
processing and audio/video clocks.
CLKX
B10
O
Connected to other pin of 13.5 MHz crystal. This pin
should be unconnected if an LVTTL clock signal is
connected to CLKI.
CLKO/DAC
A12
O
The output of the internal 13.5 MHz crystal oscillator
or output of a train of digital pulses controlled by
register TCdacCtl. The function is selected by the
clock control register.
PLL_BYPASS
A7
I
Bypasses the PLL used to generate the internal
processing clock (also for I/O interfaces that do not
have their own clock). (For testing purposes only.)
RREF
C11
I
Analog reference resistor. Connecting to pin
VSS_RREF through a 1.18 K
±
1% resistor is
recommended.
NC
C6, B5, B4, C5,
D6, A4, B1, A3,
A6, D2
I/O
No connect.