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参数资料
| 型号： | MA3690 |
| 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： | 2/41页 |
| 文件大小： | 426K |
| 代理商： | MA3690 |
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MA3690/1/3
2/41
NDOUT0N
Negative Manchester data for driver on bus 0.
Output
PDIN1
Positive threshold exceeded on bus 1.
Input
NDIN1
Negative threshold exceeded on bus 1.
Input
TXEN1N
Transmit enable for driver on bus 1.
Output
PDOUT1N
Positive Manchester data for driver on bus 1.
Output
NDOUT1N
Negative Manchester data for driver on bus 1.
Output
SUBSYSTEM INTERFACE LINES
STROBEN
STROBE - Information transfer strobe pulse for words being
transferred on the data highway.
Output
BUFENN
BUFFER ENABLE - This line goes low to enable the data
highway buffer between the terminal and the subsystem.
Output
R/WN
READ/WRITE - This line indicates the direction of information
transfer between the terminal and the subsystem. When low,
information is being written from the terminal to the
subsystem.
Output
DTRQN
DATA TRANSFER REQUEST - This line goes low to request
permission to transfer a non mode data word to or from the
subsystem.
Output
DTAKN
DATA TRANSFER ACKNOWLEDGE - This line should be
driven low to grant permission to perform the requested data
word transfer.
Input
MDTN
MODE DATA TRANSFER -
RT: This line goes low to indicate that the data word being
transferred is assosiated with a mode command.
BC: When operating as a passive monitor this line goes low
to indicate that a valid data word is on the data highway and
should be written into the received data latch.
Output
GBRN
GOOD BLOCK RECEIVED - When in RT mode this line will
pulse low to inform the subsystem that the received non
mode data words are valid and may be used.
Output
ADENN
ADDRESS ENABLE - When in RT mode this line will go low
as part of the reset routine to enable the terminal address on
to the data highway.
Output
SYNCN
SYNCHRONISE - This line will pulse low if a valid
synchronise mode command without data is received and
passes all validity checks.
Output
STATENN
STATUS ENABLE -
RT: When low this line enables the contents of the
subsystem status latch on to the data highway.
BC: When low this line enables the BC report word on to the
data highway.
Output
MDRN
MODE DATA RECEIVED - This line will pulse low to
inform the subsystem that the received mode data is
valid and may be used.
Output
RXCMDN
RECEIVED COMMAND -
RT: This line goes low to indicate that a valid command word
for this RT is on the highway and should be written into the
command word latch.
BC: When operating as a passive monitor this line goes low
to indicate that a valid command / status word is on the data
highway and should be written into the received status latch.
Output
BUSYREQN / HALTREQN
Input
BUSY REQUEST / HALT REQUEST -
RT: This line should be driven low as a request for the
terminal to set the busy bit and inhibit non mode data
transfers to or from the subsystem.
BC: This line should be driven low as a request for the
terminal to halt table execution and all subsystem access.
BUSYACKN / HALTEDN
BUSY ACKNOWLEDGE / HALTED -
RT: This line will go low to indicate that the subsystem has
free access to the shared store.
BC: This line will go low to indicate that all terminal operation
has been halted and hence the subsystem has free access to
the shared store.
Output
CODENN
CODE ENABLE - This line when low indicates that a
word transfer between the terminal and either the
Instruction Store or the Report Store is taking place.
Output
C0
CODE 0 - This line is the least significant address line from
the terminal to the Instruction and Report Stores.
Output
C1
CODE 1 - This line is the least significant but one address
line from the terminal to the Instruction and Report Stores.
Output
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