參數(shù)資料
型號: PCI6420
廠商: Texas Instruments, Inc.
英文描述: Integrated 2-Slot PC Card & Dedicated Flash Media Controller
中文描述: 集成雙槽 PC 卡專用閃存介質(zhì)控制器
文件頁數(shù): 95/160頁
文件大小: 818K
代理商: PCI6420
4
29
4.40 Diagnostic Register
The diagnostic register is provided for internal TI test purposes. It is a read/write register, but only 0s must be written
to it. See Table 4
18 for a complete description of the register contents.
Bit
7
6
5
4
3
2
1
0
Name
Diagnostic
Type
RW
R
RW
RW
RW
RW
RW
RW
Default
0
1
1
0
0
0
0
0
Register:
Offset:
Type:
Default:
Diagnostic
93h (functions 0, 1)
Read/Write
60h
Table 4
18. Diagnostic Register Description
BIT
SIGNAL
TYPE
FUNCTION
7
§
TRUE_VAL
RW
This bit defaults to 0. This bit is encoded as:
0 = Reads true values in PCI vendor ID and PCI device ID registers (default)
1 = Returns all 1s to reads from the PCI vendor ID and PCI device ID registers
Reserved. This bit is read-only and returns 1 when read.
6
RSVD
R
5
CSC
RW
CSC interrupt routing control
0 = CSC interrupts routed to PCI if ExCA 803 bit 4 = 1
1 = CSC interrupts routed to PCI if ExCA 805 bits 7
4 = 0000b (default).
In this case, the setting of ExCA 803 bit 4 is a don
t care.
Diagnostic RETRY_DIS. Delayed transaction disable.
4
§
DIAG4
RW
3
§
DIAG3
RW
Diagnostic RETRY_EXT. Extends the latency from 16 to 64.
Diagnostic DISCARD_TIM_SEL_CB. Set = 210, reset = 215.
Diagnostic DISCARD_TIM_SEL_PCI. Set = 210, reset = 215.
2
§
DIAG2
RW
1
§
DIAG1
RW
0
RSVD
RW
This bit is reserved. Do not change the value of this bit.
One or more bits in this register are cleared only by the assertion of GRST.
§
This bit is global and is accessed only through function 0.
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