TSB82AA2-EP Datasheet, PDF (28/102 Pages) Texas Instruments – 1394b OHCI-Lynx Controller Data Manual

3.8 Header Type and BIST Register
The header type and built-in self-test (BIST) register indicates the TSB82AA2 PCI header type, and indicates no
built-in self test. See Table 3--7 for a complete description of the register contents.
Bit
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Name
Header type and BIST
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Type:
Offset:
Default:
Header type and BIST
Read-only
0Eh
0000h
Table 3--7. Header Type and BIST Register Description
BIT
15--8
7--0
FIELD NAME
BIST
HEADER_TYPE
TYPE
R
R
DESCRIPTION
Built-in self test. The TSB82AA2 device does not include a BIST; therefore, this field returns 00h when
read.
PCI header type. The TSB82AA2 device includes the standard PCI header, which is communicated by
returning 00h when this field is read.
3.9 OHCI Base Address Register
The OHCI base address register is programmed with a base address referencing the memory-mapped OHCI control.
When BIOS writes all 1s to this register, the value read back is FFFF F800h, indicating that at least 2K bytes of
memory address space are required for the OHCI registers. See Table 3--8 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
OHCI base address
Type
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Default 0
0
0
0
0
0
0
0
0
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
OHCI address
Type
R/W R/W R/W R/W R/W R
R
R
R
R
R
R
R
R
R
R
Default 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Type:
Offset:
Default:
OHCI base address
Read/Write, Read-only
10h
0000 0000h
Table 3--8. OHCI Base Address Register Description
BIT
31--11
10--4
3
2--1
0
FIELD NAME
OHCIREG_PTR
OHCI_SZ
OHCI_PF
OHCI_MEMTYPE
OHCI_MEM
TYPE
R/W
R
R
R
R
DESCRIPTION
OHCI register pointer. This field specifies the upper 21 bits of the 32-bit OHCI base address register.
OHCI register size. This field returns 0s when read, indicating that the OHCI registers require a
2K-byte region of memory.
OHCI register prefetch. Bit 3 returns 0 when read, indicating that the OHCI registers are
nonprefetchable.
OHCI memory type. This field returns 0s when read, indicating that the OHCI base address register is
32 bits wide and mapping can be done anywhere in the 32-bit memory space.
OHCI memory indicator. Bit 0 returns 0 when read, indicating that the OHCI registers are mapped into
system memory space.
3--8