参数资料
型号: L64007
厂商: LSI CORP
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP160
封装: PLASTIC, QFP-160
文件页数: 24/166页
文件大小: 1015K
代理商: L64007
Arch
4 Wed May 28 17:36:23 1997
Draft 1/21/97
2-4
Architecture
PRE.4 for Rev. D
Copyright 1997 by LSI Logic Corporation. All rights reserved.
Two signals allow the CPU to monitor the open slots on the channel
decoder interface FIFO to prevent overow. CDRDY becomes active
when there are more than 10 slots open on the FIFO. The Channel Over-
ow bit becomes active when there are fewer than four open slots in the
FIFO.
Figure 2.2 shows the typical interface timing of the channel decoder
interface.
Figure 2.2
Channel Decoder
Interface Timing
Diagram
Locking and unlocking the transport data system is done by two pro-
grammable counters residing in the Channel Control register: IN_SYNC
and OUT_SYNC. Figure 2.3 shows the start of the sync process.
Figure 2.3
Starting the Sync
Process
CDCLK
CD[7:0]
CDEN
CDERR
Valid
CDSYNC
CDRDY
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