Texas Instruments PCI7621, PCI7411, PCI7611 Subsystem ID Alias Register, Class Code Alias Register

13.23 Subsystem ID Alias Register

The contents of the subsystem access register are aliased to the subsystem vendor ID and subsystem ID registers at PCI offsets 2Ch and 2Eh, respectively. See Table 13−14 for a complete description of the register contents.

Bit	31	30	29	28	27	26	25		24	23	22	21	20	19	18	17	16
Name								Subsystem ID alias
Type	RW	RW	RW	RW	RW	RW	RW		RW	RW	RW	RW	RW	RW	RW	RW	RW
Default	1	0	0	0	0	0	0		0	0	0	1	1	0	1	0	1

Bit	15	14	13		12	11	10		9		8	7	6	5	4	3	2	1	0
Name										Subsystem ID alias
Type	RW	RW	RW		RW	RW	RW		RW		RW	RW	RW	RW	RW	RW	RW	RW	RW
Default	0	0	0		1	0	0		0		0	0	1	0	0	1	1	0	0
	Register:		Subsystem ID alias
	Offset:		50h
	Type:		Read/Write (EEPROM,					GRST		only)
	Default:		8035 104Ch
				Table 13−14. Subsystem ID Alias Register Description
BIT	FIELD NAME				TYPE								DESCRIPTION
31−16	SubsystemID				RW	Subsystem device ID. The value written to this field is aliased to the subsystem ID register at
						PCI offset 2Eh.
15−0	SubsystemVendorID				RW	Subsystem vendor ID. The value written to this field is aliased to the subsystem vendor ID
						register at PCI offset 2Ch.

13.24 Class Code Alias Register

This register is alias of the class code. Not like original register, this register is read/write and loadable from EEPROM.

Bit	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
Name								Class code alias
Type	RW	RW	RW	RW	RW	RW	RW	RW	RW	RW	RW	RW	RW	RW	RW	RW
Default	0	0	0	0	0	1	1	1	1	0	0	0	0	0	0	0

Bit	15	14	13	12	11	10	9	8		7		6	5	4	3	2	1	0
Name								Class code alias
Type	RW	RW	RW	RW	RW	RW	RW	RW		RW		RW	R	R	R	R	R	R
Default	0	0	0	0	0	0	0	0		0		0	0	0	0	0	0	0
	Register:		Class code alias
	Offset:		54h
	Type:		Read-only, Read/Write (EEPROM,						GRST		only)
	Default:		0780 0000h

13−14