參數(shù)資料
型號(hào)： SBPH400-3
廠商： 意法半導(dǎo)體
英文描述： IEEE1394 3-Port 400Mbps Physical Layer
中文描述： IEEE1394連接3端口400Mbps的物理層
文件頁(yè)數(shù)： 19/43頁(yè)
文件大?。?/td> 285K
代理商： SBPH400-3
SBPH400-3
19/43
The
Request Type
field is encoded as specified in Table 2.10:
Table 2.12
Request type field
LR[1:3]
000
Name
ImmReq
Description
Used for Acknowledge Transfers. The SBPH400 takes control of the bus
immediately upon detecting idle without arbitration.
Used for Isochronous Transfers. The SBPH400 arbitrates after an
isochronous gap, or transmits immediately if an isochronous packet has
just been received from a child port (fly-by arbitration). The SBPH also
performs accelerated arbitrations (see AccCtrl below) after receiving this
request if the enab_accel register is set to 1.
Used for Cycle Master requests. The SBPH400 arbitrates after a
subaction gap or, if acceleration enhancements are enabled (enab_accel
register is set to 1) and if accelerate control has been set to allow
accelerations (see AccCtrl below), arbitrates after an ACK packet has
been received, or transmits immediately if an ACK packet has just been
received on a child port (see Accelerate/Decelerate below), ignoring the
fair protocol. This is also used for the second and subsequent optimized
fair transfers
Used for Fair Transfers. Used for Fair Transfers. The SBPH400 normally
arbitrates after subaction gap. If acceleration enhancements are enabled
(enab_accel register is set to 1) and if accelerate control has been set to
allow accelerations (see AccCtrl below), then the SBPH400 will arbitrate
after an ACK packet has been received, or transmit the packet
immediately if an ACK packet has been received on a child port. In all
cases the SBPH400 follows the fair protocol (one FairReq packet per
arbitration reset gap).
Return specified register contents through a status transfer.
Note that the result is undefined if a previous RdReg request has not been
completed.
Write to specified register.
Accelerate control. The link should send an AccCtrl request with
Acceleration_Select = 0 (Decelerate) if it is not root and when its cycle
timer has counted a 125
μ
s interval. The SBPH400 will not employ ACK
accelerated arbitration or fly-by arbitration for asynchronous packets until
a subsequent Accelerate request with Acceleration_Select = 1
(Accelerate) is received or an IsoReq has been received. The link should
send an Accelerate request with Acceleration_Select = 1 after it has
received a cycle start packet if it has no isochronous packets to transmit
in the current isochronous cycle.
ignored
001
IsoReq
010
PriReq
011
FairReq
100
RdReg
101
110
WrReg
AccCtrl
111
reserved
2
相關(guān)PDF資料
PDF描述
SD-B2D00 CRYSTAL CLOCK OSCILLATORS
SD-BD00-FREQ CRYSTAL CLOCK OSCILLATORS
SD-BD01-FREQ CRYSTAL CLOCK OSCILLATORS
SD-BD07-FREQ CRYSTAL CLOCK OSCILLATORS
SD-BD09-FREQ CRYSTAL CLOCK OSCILLATORS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SBPSU10K15FC1M1 制造商:Schneider Electric 功能描述:APC SMART-UPS VT MAINTENANCE BYPASS PANEL 10-15KVA 208V FLOO - Bulk
SBPSU10K15F-WP 制造商:Schneider Electric 功能描述:APC MAINTENANCE BYPASS PANEL 10-15KVA 208V WALLMOUNT - Bulk
SBPSU10K20HC1M1-WP 制造商:American Power Conversion Corp 功能描述:APC SMART-UPS VT MAINTENANCE B 制造商:Schneider Electric 功能描述:APC SMART-UPS VT MAINTENANCE BYPASS PANEL 10-20KVA 400V WALL - Bulk
SBPSU10K30FC1M1-WP 制造商:Schneider Electric 功能描述:SMART-UPS VT BYPASS PANEL - Bulk 制造商:Schneider Electric 功能描述:APC Smart-UPS VT Maintenance Bypass Panel 10-30kVA 208V Wall Mount w/42 Pos. Dis
SBPSU20K30FC1M1 制造商:Schneider Electric 功能描述:APC SMART-UPS VT MAINTENANCE BYPASS PANEL 20-30KVA 208V FLOO - Bulk
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

*
*
*