L64118 LSI Logic Corporation, L64118 Datasheet - Page 48

• Manufacturer Part Number: L64118
• Description: Controllers, Transport Controller with Embedded MIPS CPU (TR4101)
• Manufacturer: LSI Logic Corporation

General-Purpose Pins
48
IRTX
The general-purpose I/O signals for the L64118 let you control and
monitor various external events. These signals consist of eight groups.
Group 7 contains dedicated GPIO signals, whereas the other groups
multiplex the GPIO signals with other functions. Note that all pins within
a GPIO group must be enabled or disabled as a group; however,
individual GPIO pins can be configured as inputs or outputs using the
General-Purpose Control register. The GPIO groups and associated pins
are listed in Table 5 through Table 12.
Table 5
1. The GPIO3 and GPIO5 signals are not
L64118 MPEG-2 Transport Controller with Embedded MIPS CPU (TR4101)
Pin Name
CSn[4]
BEn[2]
BEn[3]
SDQMH
available on the L64118.
Group 1: EBus Signals
Infrared Transmitter
This signal serves as the infrared transmitter output.
GPIO44
IRRX1 can serve as a general-purpose I/O signal
(GPIO44) by setting bit 7 in the General-Purpose Mode
register.
By default, this signal floats after reset.
GPIO Signal
GPIO1
GPIO2
GPIO4
GPIO6
1
Bidirectional
Output