參數(shù)資料
型號(hào)： TI380PCM
廠商： Texas Instruments, Inc.
英文描述： PCI BUS INTERFACE FOR THE TI380 COMMPROCESSORS
中文描述： PCI總線接口，可用于TI380 COMMPROCESSORS
文件頁(yè)數(shù)： 31/40頁(yè)
文件大?。?/td> 530K
代理商： TI380PCM
TI380PCIA
PCI BUS INTERFACE FOR THE TI380 COMMPROCESSORS
SPWS035 – JUNE 1997
31
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
TI2000 configuration register (continued)
Bit 11:
INST8. This bit indicates whether the driver can use 16-bit instructions to access adapter registers. It
is hardwired to 0 because PCI-based machines are able to perform 16-bit instructions.
1 = The TI2000 driver must use 8-bit instructions to access the LAN adapter registers.
0 = The TI2000 driver can use 16-bit instructions to access the LAN adapter registers.
Bit 12:
DEDMACTL. The Don’t Enable ISA DMA Controller (DEDMACTL) bit indicates whether the TI2000
driver must enable the ISA DMA controller (see Table 12). The ISA DMA controller is not used to control
operations on the PCI bus. To allow the TI2000 software specification to be expanded to comprehend the PCI
bus, this bit is hardwired to a 1 to indicate that a TI2000 driver controlling a PCI-based network interface card
should not enable an ISA DMA controller. (The setting of this bit does not affect DMA on the PCI bus.)
Table 12. ISA DMA Controller Settings
DMA MODE
DEDMACTL BIT VALUE
DMA
1 = Driver must NOT enable ISA DMA controller
DMA
0 = Driver must enable ISA DMA controller
PDMA
x = Driver must NOT enable ISA DMA controller
Bits 13–14:
Reserved. These bits must be read as 0.
Bit 15:
Config. The MSB of the configuration register, when set, indicates the existence of the configuration
register. This bit is hardwired to 1 to indicate the presence of a configuration register.
CONFIG = 1 There is a configuration register.
CONFIG = 0 There is no configuration register.
silicon errata
A description of known silicon errata for TI380PCIA devices stamped with the identifier “TI380PCIAPCM”
follows.
ID 380PCI20001—description
When the TI380PCIA is DMAing data to or from host memory, there is a very narrow window during which
back-to-back DIO reads or writes initiated by the host may conflict with the DMA. When the TI380PCIA is
DMAing data between host memory and the TI380C2x
, if the host initiates a DIO access to the TI380PCIA,
then the TI380PCIA issues a retry to the host. The TI380PCIA then halts the DMA transfer between the
TI380C2x
and the TI380PCIA. When the host retries the DIO access, it is allowed to complete successfully
and the TI380PCIA then permits the pending DMA to restart. If the host attempts a second DIO access within
one PCI cycle of completion of the successful DIO access (that is, if the host asserts the PCI bus FRAME signal
one PCI cycle after the completion of the previous successful DIO), then the second DIO access conflicts with
the restarting of the DMA, resulting in a data corruption of the DIO. In such a case, the second DIO read or write
data is replaced with the DMA address. Note that after the conflict, the DMA resumes successfully.
ID 380PCI20001—work-arounds
Establish a handshake within driver software such that DIO accesses cannot take place during DMA
transfers.
or
Ensure that back-to-back DIO accesses never take place within one PCI clock cycle.
A
TI380C3x devices can be used with TI380PCIA in the same way as TI380C2x devices.
相關(guān)PDF資料
PDF描述
TIBPAL22V10-20MFK Adjustable 2.5-36V +/-0.4% Tolerance, 1-100mA Shunt Regulator; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
TIBPAL22V10-20MJT HIGH-PERFORMANCE IMPACT-X E PROGRAMMABLE ARRAY LOGIC CIRCUITS
TIBPAL22V10C Adjustable 2.5-36V +/-0.4% Tolerance, 1-100mA Shunt Regulator; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Tape and Reel; Qty per Container: 2500
TIBPAL22V10AMFK HIGH-PERFORMANCE IMPACT E PROGRAMMABLE ARRAY LOGIC CIRCUITS
TIBPAL22V10CFN HIGH-PERFORMANCE IMPACT E PROGRAMMABLE ARRAY LOGIC CIRCUITS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TI4013 制造商:Bosch 功能描述:13 Piece Titanium Coated Drill Bit Set with Metal Case 制造商:Bosch Sensortec 功能描述:13 PC TITANIUM DRILL BITS WITH METAL CASE
TI4029 制造商:Bosch 功能描述:29 Piece Titanium Coated Drill Bit Set with Metal Case 制造商:Bosch Sensortec 功能描述:29 PC TITANIUM DRILL BITS WITH METAL CASE
TI40FT-20 制造商:Fluke Electronics 功能描述:IR FlexCam Thermal Imager,160,STDF/W,Fusion 20 mm Lens
TI4200-VTD8X 制造商:Micro-Star International 功能描述:GF4 TI4200-8X 128MB AGP - Bulk
TI45FT/HT-20 制造商:Fluke Electronics 功能描述:IR FlexCam Thermal Imager TI45 W Fusion & HT/20 mm Lens
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*