參數(shù)資料
型號(hào): Z53C80SCSI
廠商: ZiLOG, Inc.
英文描述: SMALL COMPUTER SYSTEM INTERFACE (SCSI)
中文描述: 小型計(jì)算機(jī)系統(tǒng)接口(SCSI)
文件頁(yè)數(shù): 16/40頁(yè)
文件大?。?/td> 447K
代理商: Z53C80SCSI
16
Z53C80 SCSI
PS97SCC0200
Z
ILOG
FUNCTIONAL DESCRIPTION
(Continued)
A phase mismatch prevents the recognition of /REQ and
removes the chip from the bus during an Initiator send
operation (/DB7-/DB0 and /DBP will not be driven even
through the Assert Data Bus bit (Initiator Command Register,
bit 0). This may be disabled by resetting the DMA Mode bit
(Note: It is possible for this interrupt to occur when
connected as a Target if another device is driving the
phase lines to a different state).
The proper values for the Bus and Status Register and the
Current SCSI Bus Status Register are displayed in Figures
23 and 24, respectively.
Loss of BSY.
If the Monitor Busy bit (bit 2) in the Mode
Register is active, an interrupt is generated if the BSY
signal goes FALSE for at least a bus-settle delay. This
interrupt is disabled by resetting the Monitor Busy bit.
Register values are displayed in Figures 25 and 26.
Figure 25. Bus and Status Register
Figure 26. Current SCSI Bus Status Register
Figure 23. Bus and Status Register
Figure 24. Current SCSI Bus Status Register
D7
D0
0
/DBP
/SEL
I//O
C//D
/MSQ
/REQ
/BSY
/RST
0
0
0
X
X
X
0
D7
D0
/ACK
/ATN
Busy Error
Phase Match
Interrupt Request Active
Parity Error
DMA Request
End of DMA
0
0
0
1
0
0
X
0
D7
D0
0
/ACK
/ATN
Busy Error
Phase Match
Interrupt Request Active
Parity Error
DMA Request
End of DMA
0
0
0
1
X
1
0
D7
D0
/DBP
/SEL
I//O
C//D
/MSQ
/REQ
/BSY
/RST
0
1
X
X
X
X
0
X
相關(guān)PDF資料
PDF描述
Z54122 RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
Z5U0603 ceramic chip capacitors
Z5U0805 ceramic chip capacitors
Z5U1206 ceramic chip capacitors
Z5U1210 ceramic chip capacitors
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
Z53E11 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:E5M Operation Manual DX CODE ZA
Z53RD431 制造商:HVCA & CKE 功能描述:Varistor, MO, 430V, 50000A, 7000pF
Z540 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Intel Atom Processor
Z540-TRACEABLE-W/DATA 功能描述:手持示波器 NIST-CAL-CERT TRACEABLE W/DATA RoHS:否 制造商:Fluke 帶寬:200 MHz 采樣比:2.5 GS/s 顯示器類型:153 mm Full Color LCD 設(shè)備類型:Oscilloscopes
Z54122 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RETRIGGERABLE MONOSTABLE MULTIVIBRATOR