PC87373 datasheet(15/174 Pages) NSC

15 / 174 page

1.0 Signal/Pin Connection and Description (Continued)

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Revision 1.1

1.3 PIN MULTIPLEXING

Table 2 shows only multiplexed pins, their associated functional blocks and the configuration bits for the selection of the

multiplexed options used in the PC87373.

Table 2. Pin Multiplexing Conﬁguration

Default

Signal

Function

Block

Alternate

Signal

Function

Block

Alternate

Signal

Function

Block

Conﬁguration

Select

Strap or

Wake-Up

Function

Block

30 DTR_BOUT1

Serial

Port 1

XOR_OUT

Conﬁg

TEST (strap)

BADDR

Conﬁg

(Straps)

26 RTS1

TRIS

27 SOUT1

TEST

32 RI1

RI1

SWC

119 RI2

Serial

Port 2

RI2

3 KBCLK

KBC

KBCLK

4 KBDAT

KBDAT

1 MCLK

MCLK

2MDAT

MDAT

103 GPIOE00

GPIO

GPIOE00

104 GPIOE01

FANTACH3 FSCM

SIOCF2.TACH3EN

GPIOE01

105 GPIOE02

GPIOE02

106 GPIOE03

FANPWM1

FSCM

SIOCF3.PWM1EN

GPIOE03

108 GPIOE04

FANPWM2

FSCM

SIOCF3.PWM2EN

GPIOE04

109 GPIOE05

FANPWM2

FSCM

SIOCF3.PWM2EN

GPIOE05

111 GPIOE06

FANTACH1

FSCM

SIOCF2.TACH1EN

GPIOE06

112 GPIOE07

FANTACH2

SIOCF2.TACH2EN

GPIOE07

116 5V_DDCSDA

Glue

Functions

GPIOE10

GPIO

JYBBT1

Game

Port

SIOCF2.GPIO03EN,

SIOCF3.GMPEN

GPIOE10

114 5V_DDCSCL

GPIOE11

JYABT1

GPIOE11

115 3V_DDCSDA

GPIOE12

JYBBT0

GPIOE12

113 3V_DDCSCL

GPIOE13

JYABT0

GPIOE13

101

CDC_DWN_

ENAB

GPIO14

Note1

1. Both CDC_DWN_ENAB and GPIO14 are simultaneously available at the device pin.

88 SMB2_SCL

Glue

Functions

MDTX

MIDI

SIOCF4.MIDIEN

90 SMB2_SDA

MDRX

PC87373 Datasheet(PDF) 15 Page - National Semiconductor (TI)

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