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| 型號： | PCI6515GHK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | SINGLE SOCKET CARDBUS CONTROLLER WITH DEDICATED SMART CARD SOCKET |
| 中文描述： | 單插槽CardBus控制器，專用智能卡插槽 |
| 文件頁數(shù)： | 129/148頁 |
| 文件大?。?/td> | 760K |
| 代理商： | PCI6515GHK |
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75
7.5
Class Code and Revision ID Register
The class code and revision ID register categorizes the base class, subclass, and programming interface of the
function. The base class is 07h, identifying the controller as a communication device. The subclass is 80h, identifying
the function as other communication device, and the programming interface is 00h. Furthermore, the TI chip revision
is indicated in the least significant byte (00h). See Table 74 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
Class code and revision ID
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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 and revision ID
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:
Offset:
Type:
Default:
Class code and revision ID
08h
Read-only
0780 0000h
Table 74. Class Code and Revision ID Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
3124
BASECLASS
R
Base class. This field returns 01h when read, which classifies the function as a mass storage controller.
2316
SUBCLASS
R
Subclass. This field returns 80h when read, which specifically classifies the function as other mass
storage controller.
158
PGMIF
R
Programming interface. This field returns 00h when read.
70
CHIPREV
R
Silicon revision. This field returns 00h when read, which indicates the silicon revision of the Smart Card
controller.
7.6
Latency Timer and Class Cache Line Size Register
The latency timer and class cache line size register is programmed by host BIOS to indicate system cache line size
and the latency timer associated with the Smart Card controller. See Table 75 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
Latency timer and class cache line size
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Offset:
Type:
Default:
Latency timer and class cache line size
0Ch
Read/Write
0000h
Table 75. Latency Timer and Class Cache Line Size Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
158
LATENCY_TIMER
RW
PCI latency timer. The value in this register specifies the latency timer for the Smart Card controller,
in units of PCI clock cycles. When the Smart Card controller is a PCI bus initiator and asserts FRAME,
the latency timer begins counting from zero. If the latency timer expires before the Smart Card
transaction has terminated, then the Smart Card controller terminates the transaction when its GNT
is deasserted.
70
CACHELINE_SZ
RW
Cache line size. This value is used by the Smart Card controller during memory write and invalidate,
memory-read line, and memory-read multiple transactions.
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