Texas Instruments PCI7421, PCI7411, PCI7611 Power Management Data Register, Power management data

11.20 Power Management Data Register

The power management bridge support extension register provides extended power-management features not applicable to the flash media controller; thus, it is read-only and returns 0 when read.

Bit		7	6	5		4	3	2	1	0
Name					Power management data
Type		R	R	R		R	R	R	R	R
Default		0	0	0		0	0	0	0	0
	Register:		Power management data
	Offset:		4Bh
	Type:		Read-only
	Default:		00h

11.21 General Control Register

The general control register provides miscellaneous PCI-related configuration. See Table 11−14 for a complete description of the register contents.

Bit		7	6	5	4	3	2	1	0
Name					General control
Type		R	R	R	RW	RW	RW	RW	RW
Default		0	0	0	0	0	0	0	0
	Register:		General control
	Offset:		4Ch
	Type:		Read/Write, Read-only
	Default:		00h

			Table 11−14. General Control Register
BIT	FIELD NAME	TYPE				DESCRIPTION
7	RSVD	R	Reserved. Bit 7 returns 0 when read.
6−5 ‡	INT_SEL	RW	Interrupt select. These bits are program the INTPIN register and set which interrupt output is used.
			This field is ignored if one of the USE_INTx terminals is asserted.
			00 =	INTA
			01 = INTB
			10 = INTC
			11 = INTD
4 ‡	D3_COLD	RW	D3cold			support. This bit sets and clears the D3cold		support bit in the power management
					PME		PME
			capabilities register.
3	RSVD	R	Reserved. Bit 3 returns 0 when read.
2 ‡	SM_DIS	RW	SmartMedia disable. Setting this bit disables support for SmartMedia cards. The flash media
			controller reports a SmardMedia card as an unsupported card if this bit is set. If this bit is set, then
			all of the SM_SUPPORT bits in the socket enumeration register are 0.
1 ‡	MMC_SD_DIS	RW	MMC/SD disable. Setting this bit disables support for MMC/SD cards. The flash media controller
			reports a MMC/SD card as an unsupported card if this bit is set. If this bit is set, then all of the
			SD_SUPPORT bits in the socket enumeration register are 0.
0 ‡	MS_DIS	RW	Memory Stick disable. Setting this bit disables support for Memory Stick cards. The flash media
			controller reports a Memory Stick card as an unsupported card if this bit is set. If this bit is set, then
			all of the MS_SUPPORT bits in the socket enumeration register are 0.

‡ One or more bits in this register are cleared only by the assertion of GRST.

11−13