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參數(shù)資料
| 型號： | L64118 |
| 廠商： | LSI CORP |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA256 |
| 封裝： | PLASTIC, BGA-256 |
| 文件頁數(shù)： | 38/68頁 |
| 文件大?。?/td> | 877K |
| 代理商： | L64118 |
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L64118 MPEG-2 Transport Controller with Embedded MIPS CPU (TR4101) 43
Teletext Port
These signals connect the L64118 to an external NTSC/PAL video
encoder with a Teletext port.
TTXDATA
Teletext Data
Master
Output
This signal supplies the teletext data to the external video
encoder. The L64118 outputs teletext data when
TTXREQ is asserted and there are enough bits in the
teletext output buffer to supply one complete teletext line.
By default, this signal is not asserted after reset.
GPIO13
Bidirectional
TTXDATA can serve as a general-purpose I/O signal
(GPIO13) by setting bit 2 in the General-Purpose Mode
register.
TTXREQ
Teletext Data Request
Master
Input
When set HIGH, this signal indicates that the external
video encoder device requests teletext data to be
transferred through TTXDATA. The L64118 outputs
teletext data on the TTXDATA pin as long as TTXREQ is
asserted. You must program the Video Encoder device so
the length of assertion of TTXREQ is compatible with the
exact number of teletext bits per line. The L64118
Teletext port supports a direct connection to the Teletext
port of NTSC/PAL video encoders. During normal opera-
tion, this is an input signal. By default, this signal is not
asserted after reset.
GPIO12
Bidirectional
TTXREQ can serve as a general-purpose I/O signal
(GPIO12) by setting bit 2 in the General-Purpose Mode
register.
SmartCard Port
These signals provide the connection between the L64118 and external
SmartCard devices. These signals are used by the L64118 to initialize
external devices in a system with such a port. The L64118 supports two
independent SmartCard devices.
118bds Page 43 Wednesday, February 3, 1999 12:37 PM
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