參數(shù)資料
型號: PCI1520-EP
英文描述: Military Enhanced Plastic PC Card Controllers Data Manual
中文描述: 軍事增強(qiáng)塑料PC卡控制器數(shù)據(jù)手冊
文件頁數(shù): 74/125頁
文件大?。?/td> 716K
代理商: PCI1520-EP
4
21
4.31 Retry Status Register
The retry status register enables the retry timeout counters and displays the retry expiration status. The flags are set
when the PCI1520 retries a PCI or CardBus master request and the master does not return within 2
15
PCI clock
cycles. The flags are cleared by writing a 1 to the bit. These bits are expected to be incorporated into the PCI
command, PCI status, and bridge control registers by the PCI SIG. Access this register only through function 0. See
Table 4
10 for a complete description of the register contents.
Bit
7
6
5
4
3
2
1
0
Name
Retry status
Type
RW
RW
RC
R
RC
R
RC
R
Default
1
1
0
0
0
0
0
0
Register:
Offset:
Type:
Default:
Retry status
90h (functions 0, 1)
Read-only, Read/Write, Read/Clear
C0h
Table 4
10. Retry Status Register Description
BIT
SIGNAL
TYPE
FUNCTION
7
PCIRETRY
RW
PCI retry timeout counter enable. Bit 7 is encoded:
0 = PCI retry counter disabled
1 = PCI retry counter enabled (default)
6
CBRETRY
RW
CardBus retry timeout counter enable. Bit 6 is encoded:
0 = CardBus retry counter disabled
1 = CardBus retry counter enabled (default)
5
TEXP_CBB
RC
CardBus target B retry expired. Write a 1 to clear bit 5.
0 = Inactive (default)
1 = Retry has expired
4
RSVD
R
Reserved. Bit 4 returns 0 when read.
3
TEXP_CBA
RC
CardBus target A retry expired. Write a 1 to clear bit 3.
0 = Inactive (default)
1 = Retry has expired.
2
RSVD
R
Reserved. Bit 2 returns 0 when read.
1
TEXP_PCI
RC
PCI target retry expired. Write a 1 to clear bit 1.
0 = Inactive (default)
1 = Retry has expired.
0
RSVD
R
Reserved. Bit 0 returns 0 when read.
This bit is global and is accessed only through function 0.
相關(guān)PDF資料
PDF描述
PCI1620GHK Controller Miscellaneous - Datasheet Reference
PCI1620PDV Controller Miscellaneous - Datasheet Reference
PCI2050A 32-Bit. 66MHz. 9-Master PCI-to-PCI Bridge
PCI2050GHK BUS CONTROLLER
PCI2050PDV BUS CONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCI1520GHK 功能描述:外圍驅(qū)動器與原件 - PCI PC CARD CONTROLLER RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
PCI1520I 制造商:TI 制造商全稱:Texas Instruments 功能描述:PC CARD CONTROLLERS
PCI1520IGHK 功能描述:外圍驅(qū)動器與原件 - PCI PC CARD CONTROLLER RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
PCI1520IGHKEP 功能描述:外圍驅(qū)動器與原件 - PCI Mil Enhance PC Card Cntrlr Data Manual RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
PCI1520IPDV 功能描述:外圍驅(qū)動器與原件 - PCI PC CARD CONTROLLER RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray