參數(shù)資料
型號: GM5060-H
廠商: Electronic Theatre Controls, Inc.
英文描述: GRAPHICS PROCESSING IC PROVIDING HIGH QUALITY IMAGES FOR LCD MONITORS
中文描述: 圖形處理芯片提供高品質(zhì)的圖像液晶顯示器
文件頁數(shù): 29/85頁
文件大?。?/td> 1375K
代理商: GM5060-H
Genesis Microchip
gm5060 / gm5060-H Data Sheet
February 2002
C5060-DAT-01G
21
4.3.3 Sync. Signal Support
The gm5060 chip supports digital separate sync (HSYNC/VSYNC), digital composite sync, and
analog composite sync (also known as sync-on-green, or SOG). All sync types are supported
without the need for external sync separation / extraction circuits.
Digital Composite Sync
In general, the gm5060 supports standard implementations of both OR/AND type and XOR type
composite sync signals. Sync status information is available through host registers to interpret
the signal type and program its support.
OR/AND type: No CSYNC pulses toggle during the vertical sync period
XOR type: CSYNC polarity changes during the vertical sync period
The following waveforms, showing specific implementations of CSYNC, are supported by the
Genesis reference firmware. Channel 2 shows the CSYNC waveform while Channel 4 shows the
equivalent VSYNC interval. Other variations may or may not be supported and the user should
contact Genesis Microchip.
Figure 12. Positive and negative polarity OR-type CSYNC
Figure 13. Positive and negative polarity XOR-type CSYNC
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