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参数资料
| 型号： | BU-65843F3-200 |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP80 |
| 封装： | 0.880 INCH, CERAMIC, QFP-80 |
| 文件页数： | 4/75页 |
| 文件大小： | 532K |
| 代理商： | BU-65843F3-200 |
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12
Data Device Corporation
www.ddc-web.com
BU-65743/65843/65863/65864
D-06/04-0
FAILSAFE SKIP
1
FAILSAFE HALT
1
FAILSAFE RETRY
0
FAILSAFE OFF
0
FAILSAFE MODE
BIT 17
TABLE 11. FAILSAFE MODE
BIT 16
1
0
1
0
NOTE: FAILSAFE errors are extremely unlikely.
MODE 1 - FAILSAFE OFF. PCI Mini-ACE Mark3/Micro-ACE TE
will wait indefinitely for the transaction to complete. The local bus
could hang as a result. The FAILSAFE ERROR bit and interrupt
will not be generated even if the enable bit is set.
MODE 2 - FAILSAFE RETRY. PCI Mini-ACE Mark3/Micro-ACE
TE will retry the transfer on the local bus when the FAILSAFE
timer times out.
MODE 3 - FAILSAFE HALT. Once the FAILSAFE timer times
out, all future transfers will be terminated with a target abort until
the PCI master clears the interrupt.
MODE 4 - FAILSAFE SKIP. Once the FAILSAFE timer times out,
the current transaction is discarded or skipped and the next
transaction, whether a stored write in the FIFO or a new trans-
action, will be attempted.
BITS 15-0 ARE RESERVED: Write these bits as 0s.
0
31(MSB)
DESCRIPTION
BIT
TABLE 13. REG3 FAIL-SAFE TIMER PRELOAD
REGISTER (READ/WRITE 80CH)
FAIL-SAFE TIMER VALUE - BIT 15 (MSB)
15
0
16
FAIL-SAFE TIMER VALUE - BIT 0 (LSB)
0 (LSB)
0
31(MSB)
DESCRIPTION
BIT
TABLE 12. REG2 FAIL-SAFE TIMER REGISTER
(READ 808H)
FAIL-SAFE TIMER COUNT - BIT 15 (MSB)
15
0
16
FAIL-SAFE TIMER COUNT - BIT 0 (LSB)
0 (LSB)
FAIL-SAFE TIMER COUNT: Read this register to obtain the cur-
rent value of the fail-safe timer. Default is 8400h.
FAIL-SAFE TIMER VALUE: Write to this register to set the value
for the fail-safe timer. The default value is 8400h and no access
to this register is needed for normal applications.
0
31(MSB)
DESCRIPTION
BIT
TABLE 14. REG4 DISCARD TIMER REGISTER
(READ 810H)
DISCARD TIMER CURRENT - BIT 15 (MSB)
15
0
16
DISCARD TIMER CURRENT - BIT 0 (LSB)
0 (LSB)
DISCARD TIMER CURRENT: Read this register to obtain the
current value of the DISCARD TIMER. Default is 0000h.
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