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參數(shù)資料
| 型號(hào)： | MB86602C |
| 廠商： | Fujitsu Limited |
| 英文描述： | SCSI-II Protocol Controller (Differential)(SCSI-II 協(xié)議控制器) |
| 中文描述： | 支持SCSI - II協(xié)議控制器（差異）（支持SCSI - II協(xié)議控制器） |
| 文件頁數(shù)： | 10/57頁 |
| 文件大?。?/td> | 487K |
| 代理商： | MB86602C |
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MB86602C
10
I
BLOCK EXPLANATION
1. Internal Processor (Sequencer)
Performs sequence control between the various bus phases.
Bus free phase
Arbitration phase
Selection phase
Information
transfer phase
Information transfer phases:
Command phase
Data phase
Status phase
Message phase
2. Timer
Manages the SCSI time standards.
Also, conducts the following time management.
Time until the REQ or ACK signal assertion for asynchronous transfer data.
Time until selection or reselection are retried.
The REQ and ACK timeout time during transfers:
Asynchronous transfer case
Target:
After the REQ is asserted, the time until the initiator asserts the ACK.
Initiator: After the ACK is asserted, the time until the target negates the REQ.
Synchronous transfer case
Target:
After the REQ is sent, the time until the ACK signal is received from the initiator to make the offset
value “0”.
3. Phase Controller
Controls the various phases executed by SCSI (arbitration, selection/reselection, data-in/out, command, status,
and message-in/out).
4. Transfer Controller
Controls the information (data, command, status, and message) transfer phases executed by SCSI.
The following two types of the transfer phase are used.
Asynchronous transfer: Controls REQ and ACK signals by interlocks (response confirmation method).
Synchronous transfer: Controls a maximum 32 bytes offset value for the data-in/out phase.
The following two modes exist for the data phase.
Program transfer: Operates via the MPU interface and uses the data register (address 00/01).
DMA transfer: Operates via the DMA interface and uses the DREQ and DACK signals.
Transfer parameter settings (transfer mode, transfer speed, and transfer offset) for synchronous transfer can be
stored by individual ID number. The parameters are automatically established when the data phase is initiated.
The number of transfer bytes is defined as: (block length)
×
(block number).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB86603 | Communication Control SCSI-II Protocol Controller(通信控制SCSI-II協(xié)議控制器) |
| MB86604L | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| MB86604 | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| MB86604LPFV | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| MB86605 | SCSI-II Protocol Controller(with PCI interface)(SCSI-II 協(xié)議控制器(帶PCI接口)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB86604 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:SCSI-II Protocol Controller (with single-ended driver/receiver) |
| MB86604L | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:SCSI-II Protocol Controller (with single-ended driver/receiver) |
| MB86604LPFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:SCSI-II Protocol Controller (with single-ended driver/receiver) |
| MB86606A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:FAST-20 SCSI Protocol Controller |
| MB86606APMT2 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:FAST-20 SCSI Protocol Controller |
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