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參數(shù)資料
| 型號： | Z53C8003PSC |
| 廠商： | ZILOG INC |
| 元件分類： | 總線控制器 |
| 英文描述： | SMALL COMPUTER SYSTEM INTERFACE (SCSI) |
| 中文描述： | SCSI BUS CONTROLLER, PDIP48 |
| 封裝： | PLASTIC, DIP-48 |
| 文件頁數(shù)： | 15/40頁 |
| 文件大小： | 447K |
| 代理商： | Z53C8003PSC |
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15
Z53C80 SCSI
Z
ILOG
PS97SCC0200
D7
D0
/ACK
/ATN
Busy Error
Phase Match
Interrupt Request Active
Parity Error
DMA Request
End of DMA
0
X
1
1
1
0
X
X
Figure 19. Bus and Status Register
Figure 20. Current SCSI Bus Status Register
Parity Error.
An interrupt is generated for a received parity
error it the Enable Parity Check (bit 5) and the Enable Parity
Interrupt (bit 4) bits are set (1) in the Mode Register. Parity
is checked during a read of the Current SCSI Data Register
and during a DMA receive operation. A parity error can be
detected without generating an interrupt by disabling the
Enable Parity Interrupt bit and checking the Parity Error
flag (Bus and Status Register, bit 5).
The proper values for the Bus and Status Register and the
Current SCSI Bus Status Register are displayed in Figures
21 and 22, respectively.
Figure 21. Bus and Status Register
Figure 22. Current SCSI Bus Status Register
Bus Phase Mismatch.
The SCSI phase lines have the
signals I//O, C//D, and /MSG. These signals are compared
with the corresponding bits in the Target Command
Register: Assert I//O (bit 0), Assert C//D (bit 1), and Assert
/MSG (bit 2). The comparison occurs continually and is
reflected in the Phase Match bit (bit 3) of the Bus and Status
Register. If the DMA Mode bit (Mode Register, bit 1) is
active and a phase mismatch occurs when /REQ transitions
from False to True, an interrupt (IRQ) is generated.
D7
D0
/ACK
/ATN
Busy Error
Phase Match
Interrupt Request Active
Parity Error
DMA Request
End of DMA
0
X
0
1
X
0
X
X
D7
D0
/DBP
/SEL
I//O
C//D
/MSG
/REQ
/BSY
/RST
X
X
X
X
X
X
X
X
D7
D0
/DBP
/SEL
I//O
C//D
/MSQ
/REQ
/BSY
/RST
0
1
1
X
X
X
0
X
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| Z53C8003PSG | 功能描述:SCSI 接口集成電路 3MB/SEC CMOS SCSI I RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| Z53C8003VSC | 功能描述:SCSI 接口集成電路 3MB/SEC CMOS SCSI I RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| Z53C8003VSC00TR | 功能描述:IC Z53C80 SCSI 44PLCC RoHS:否 類別:集成電路 (IC) >> 接口 - 信號終端器 系列:Z53C80 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:SCSI，SE 端子數(shù):9 電源電壓:4 V ~ 5.25 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| Z53C8003VSG | 功能描述:SCSI 接口集成電路 3MB/SEC CMOS SCSI I RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| Z53C80-10PSC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
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