L64118 LSI Logic Corporation, L64118 Datasheet - Page 43
L64118
Manufacturer Part Number
L64118
Description
Controllers, Transport Controller with Embedded MIPS CPU (TR4101)
Manufacturer
LSI Logic Corporation
Datasheet
1.L64118.pdf
(68 pages)
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Teletext Port
SmartCard Port
These signals connect the L64118 to an external NTSC/PAL video
encoder with a Teletext port.
TTXDATA
TTXREQ
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.
L64118 MPEG-2 Transport Controller with Embedded MIPS CPU (TR4101) 43
Teletext Data
Master
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
TTXDATA can serve as a general-purpose I/O signal
(GPIO13) by setting bit 2 in the General-Purpose Mode
register.
Teletext Data Request
Master
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
TTXREQ can serve as a general-purpose I/O signal
(GPIO12) by setting bit 2 in the General-Purpose Mode
register.
Bidirectional
Bidirectional
Output
Input
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