PC87383 datasheet(29/77 Pages) NSC

Part #	PC87383

Description	Legacy-Reduced SuperI/O with Fast Infrared Port, Serial Port, Parallel Port and GPIOs for Portable Applications

PDF	77 Pages

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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29 / 77 page

3.0 Device Architecture and Configuration (Continued)

Revision 1.1

www.national.com

3.7.3

SuperI/O Configuration 2 Register (SIOCF2)

This register is reset by hardware to 63h.

Location: Index 22h

Type:

R/W or RO

Note: During initialization, bits 6 and 4 must be initialized to 0 to allow correct operation of the chip.

Bit

Name

PPSEL

Reserved CLKRUNSEL Reserved

LPCPDSEL

Reserved

IRRX2SEL

SP1SEL

Reset

Bit

Description

PPSEL (Parallel Port Selection Control). Selects the functions connected to pins 28 and 30.

0: GPIO24, GPIO23 (default).

1: ACK, PD7.

Reserved.

CLKRUNSEL (CLKRUN Selection Control). Selects the functions connected to pin 27. This bit is reset on VDD

power-up only.

0: GPO22.

1: CLKRUN (default).

Reserved.

LPCPDSEL (LPCPD Selection Control). Selects the function connected to pin 29. This bit is reset on VDD

power-up only.

0: GPIO21 (default)

1: LPCPD

Reserved.

IRRX2SEL (IRRX2 Selection Control). Selects the function connected to pin 10.

0: GPIO17.

1: IRRX2_IRSL0 (default).

SP1SEL (Serial Port 1 Selection Control). Selects the function connected to pins 5, 3, 63, 62, 61, 60 and 59.

0: GPIO10-GPIO16.

1: RI1, DTR1_BOUT1, CTS1, SOUT1, RTS1, SIN1, DSR1, DCD1 (default).

PC87383 Datasheet(PDF) 29 Page - National Semiconductor (TI)

PC87383 Datasheet(HTML) 29 Page - National Semiconductor (TI)

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