18

IRTX

IRRX1

IRSL0

PC87391/2/3/3F-VJG

70

69

68

PC97338VJG

63

65

66

PC87360/3/4/5/6

57

59

58

PC87309VLJ

44

43

100

PC8(9)7307

81

80

79

PC8(9)7317VUL

81

80

79

Please refer to the National Semiconductor data sheets and application notes for updated

information.

(A) National Semiconductor Super

I/O and Infrared Controller

For National Semiconductor

Super I/O and Infrared Controller

chips, IR link can be realized with

the following connections:

• Connect IRTX of the National

Super I/O or IR Controller to

TXD (pin 3) of the HSDL-3603.

• Connect IRRX1 of the National

Super I/O or IR Controller to

RXD (pin 4) of the HSDL-3603.

• Connect IRSL0 of the National

Super I/O or IR Controller to

SD/Mode (pin 5) of the HSDL-

3603.

Please refer to the table below for

the IR pin assignments for the

National Super I/O and IR Con-

trollers that support IrDA 1.4 up

to 4 Mb/s:

Figure 21. NS Super I/O configuration circuit.

TXD (3)

RXD (4)

SD/MODE (5)

GND (8)

VCC

LEDA (1)

R1

VCC

SP

HSDL-3603

CX1

CX2

NATIONAL

SEMICONDUCTOR

SUPER I/O

or

IR CONTROLLER

IRTX

IRRX1

IRSL0

HSDL-3603

FUNCTIONAL BLOCK DIAGRAM

LEDC (2)

VCC (6)