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参数资料
| 型号： | MA3691 |
| 厂商： | Dynex Semiconductor Ltd. |
| 英文描述： | 1553B Bus Controller/Remote Terminal |
| 中文描述： | 1553B总线控制器/远程终端 |
| 文件页数： | 13/41页 |
| 文件大小： | 426K |
| 代理商： | MA3691 |
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MA3690/1/3
13/41
Figure 5: Subsystem Status Latch
Figure 6: Remote Terminal Subsystem Interface Signal Transfer
SSERR
- A low will cause the Subsystem flag to be set in the
terminal status word.
SERVREQ
- A low will set the service request bit of the
terminal status word.
ILLEGAL COMMAND
- Allows the subsystem to declare any
command word illegal. When low the terminal will inhibit data
transfers to or from the subsystem, and after message
validation will respond with the message error bit set in the
terminal status word.
ALLOW CODE
- Provides the subsystem with the capability
to declare any of the reserved mode codes as being
meaningful. If a reserved mode code is received when high
the command is treated as illegal and after message
validation responds with ME bit set in the terminal status
word. If low the most significant bit of the mode code and the
T/R bit determine whether any data words are involved and
their direction.
RES0
,
RES1
,
RES2
- Provides the subsystem the capability
of setting any of the currently reserved bits of the terminal
status word.
DBACC
- Dynamic Bus Acceptance. If low then the Dynamic
Acceptance bit of the terminal status word will be set in
response to a legal Mode Command for Dynamic Bus Control
allocation. After switching to the BC mode of operation the
first instruction must be a NOOP.
DBCACC
SSERR
SERVREQ
ILLEGAL COMMANDS
ALLOW CODE
RES0
RES1
RES2
B0
B1
B2
B3
B4
B5
B6
B7
G OE
TRANSPARENT
LATCH
STATENN
INCMDN
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