PC87108AVJE NSC [National Semiconductor], PC87108AVJE Datasheet - Page 6

• Manufacturer Part Number: PC87108AVJE
• Description: Advanced UART and Infrared Controller
• Manufacturer: NSC [National Semiconductor]

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INFRARED INTERFACE SIGNALS
ID0/IRSL0/IRRX2
ID1/IRSL1,
ID2/IRSL2
ID3
IRRX1
IRRX3
IRTX
MISCELLANEOUS SIGNALS
BADDR0, 1
CLKIN
GPIO0, GPIO1
GPIO2/AUXSL
GPIO3/BUSY
RESERVED
1.0 Pin Description
Symbol
37
36, 35
25
38
79
39
22, 23
47
42, 43
44
45
48, 69
Pin(s)
(Continued)
Type
I/O
I/O
I/O
I/O
I/O
O
I
I
I
I
I
Transceiver Identification/Control or Secondary Infrared Receive.
Multi function pin implementing the following functions:
support transceiver modules with two receive data outputs, or as an auxiliary
input to support two transceiver modules.
Transceiver Identification or Control. Used to read identification data to
support Plug-n-Play infrared adapters, as well as to select the transceiver
operational mode.
Transceiver Identification. Used to read identification data to support
Plug-n-Play infrared adapters.
Infrared Receiver. Primary input to receive serial data from the infrared
transceiver module. If the infrared transceiver provides two receive data output,
the low-speed output should be connected to this pin.
Auxiliary Infrared Receiver. This pin can be used as an auxiliary infrared
receiver input when two infrared transceiver modules are used in the system.
Infrared Transmit. This output sends serial data to the transceiver module(s).
Base Address. These inputs are sampled during reset to select the device
accessing mode and/or the address of the Index register (Section 4.2). An
internal 30 k
can be used to pull these pins to V
Clock. 48 MHz clock input.
General Purpose I/O. These pins are programmable as input or output, and
can be used to control external devices. They have open-drain outputs and
weak internal pull-ups.
General Purpose I/O or Auxiliary Infrared Input Select. Dual function pin.
The pin function is controlled by the AUXIR__SL bit in the MCTL register
(Section 4.2.3). This pin has an open-drain output and a weak internal pull-up.
General Purpose I/O or Busy Status. Dual function pin. The pin function is
controlled by the BUSY__SL bit in the MCTL register (Section 4.2.3). This pin
has an open-drain output and a weak internal pull-up.
Reserved. No connections should be made to these pins.
— ID0, to read identification data to support Plug-n-Play infrared adapters.
— IRSL0, to select the transceiver operational mode.
— IRRX2, used either as a high-speed receiver input (for MIR and FIR) to
pull-down resistor is used on these pins. External 10 k
6
Description
DD
.
resistors