PC87417 Datasheet, PDF (51/257 Pages) National Semiconductor (TI) – LPC ServerI/O for Servers and Workstations

3.0 Device Architecture and Configuration (Continued)
3.7.4 ServerI/O Configuration 3 Register (SIOCF3)
Power Well:V_SB
Location:Index 23h
Type: R/W or RO
Bit
Name
Reset
7
EXTSTMUX
EXT_ST
_SELECT¹
6
SCIMUX
0
5
4
3
2
SMIMUX PWBTOMUX PWBTIMUX SLBTIMUX
0
0
0
0
1
LED2MUX
0
0
LED1MUX
0
1. The reset value is the same as the value set to the EXT_ST_SELECT bit in the SLP_ST_CFG register (see
Section 9.3.31 on page 200).
Bit
Description
7 EXTSTMUX (External PM State Multiplex Control). Selects the function connected to pins 52 and 53.
0: GPIOE46, GPIOE47 ports - GPIO (internally, SLPS3 and SLPS5 are both set to 1; not in S3-S5 states)
1: SLPS3, SLPS5 - SWC
6 SCIMUX (SIOSCI Multiplex Control). Selects the function connected to pin 38.
0: GPIO52 port - GPIO (default)
1: SIOSCI - SWC
5 SMIMUX (SIOSMI Multiplex Control). Selects the function connected to pin 37.
0: GPIO51 port - GPIO (default)
1: SIOSMI - SWC
4 PWBTOMUX (PWBTOUT Multiplex Control). Selects the function connected to pin 49.
0: PWBTOUT - SWC (default)
1: GPIOE43 port - GPIO
3 PWBTIMUX (PWBTIN Multiplex Control). Selects the function connected to pin 36.
0: PWBTIN - SWC (default)
1: GPIO50 port - GPIO (internally, PWBTIN is set to 1; Power button not active)
2 SLBTIMUX (SLBTIN Multiplex Control). Selects the function connected to pin 35.
0: GPIOE42 port - GPIO (default; internally, SLBTIN is set to 1; Sleep button not active)
1: SLBTIN - SWC
1 LED2MUX (LED2 Multiplex Control). Selects the function connected to pin 51.
0: GPIOE45 port - GPIO (default)
1: LED2 - SWC
0 LED1MUX (LED1 Multiplex Control). Selects the function connected to pin 50.
0: GPIOE44 port - GPIO (default)
1: LED1 - SWC
Revision 1.2
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