Texas Instruments XIO2213B Evaluation Module / Reference Design XIO2213BEVM XIO2213BEVM 데이터 시트
제품 코드
XIO2213BEVM
SCPS210F – OCTOBER 2008 – REVISED MAY 2013
4.8
Header Type Register
This read-only register indicates that this function has a type 1 PCI header. Bit 7 of this register is 0b,
indicating that the bridge is a single-function device.
indicating that the bridge is a single-function device.
PCI register offset:
0Eh
Register type:
Read only
Default value:
01h
BIT NUMBER
7
6
5
4
3
2
1
0
RESET STATE
0
0
0
0
0
0
0
1
4.9
BIST Register
Since the bridge does not support a built-in self test (BIST), this read-only register returns the value of 00h
when read.
when read.
PCI register offset:
0Fh
Register type:
Read only
Default value:
00h
BIT NUMBER
7
6
5
4
3
2
1
0
RESET STATE
0
0
0
0
0
0
0
0
4.10 Device Control Base Address Register
This read/write register programs the memory base address that accesses the device control registers.
See
See
for a complete description of the register contents.
PCI register offset:
10h
Register type:
Read only, Read/Write
Default value:
0000 0000h
BIT NUMBER
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RESET STATE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
BIT NUMBER
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RESET STATE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Table 4-5. Device Control Base Address Register Description
BIT
FIELD NAME
ACCESS
DESCRIPTION
31:12
ADDRESS
R or RW
Memory address. The memory address field for XIO2213B uses 20 read/write bits indicating
that 4096 bytes of memory space are required. While less than this is actually used, typical
systems will allocate this space on a 4K boundary. If the BAR0_EN bit (bit 5 at C8h) is 0,
these bits are read only and return zeros when read. If the BAR0_EN bit is 1, these bits are
read/write.
that 4096 bytes of memory space are required. While less than this is actually used, typical
systems will allocate this space on a 4K boundary. If the BAR0_EN bit (bit 5 at C8h) is 0,
these bits are read only and return zeros when read. If the BAR0_EN bit is 1, these bits are
read/write.
11:4
RSVD
R
Reserved. These bits are read only and return 00h when read.
3
PRE_FETCH
R
Prefetchable. This bit is read-only 0b indicating that this memory window is not prefetchable.
2:1
MEM_TYPE
R
Memory type. This field is read-only 00b indicating that this window can be located anywhere
in the 32-bit address space.
in the 32-bit address space.
0
MEM_IND
R
Memory space indicator. This field returns 0b indicating that memory space is used.
Copyright © 2008–2013, Texas Instruments Incorporated
Classic PCI Configuration Space
53
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