参数资料
型号: BU-63825G1-300
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, CDSO70
封装: CERAMIC, GULL LEAD, 70 PIN
文件页数: 15/48页
文件大小: 405K
代理商: BU-63825G1-300
22
Data Device Corporation
www.ddc-web.com
BU-63825
C-02/06-0
Monitor Command Stack Pointer B (fixed location)
Monitor Command Stack B (1K words)
0800-3FFF
Not Used (4K words)
Monitor Command Stack A (1K words)
3000-3FFF
0400-07FF
Monitor Data Stack B (4K words)
Not Used
2000-2FFF
0300-03FF
Monitor Data Stack A (4K words)
Selective Monitor Lookup Table (fixed area)
1000-1FFF
0280-02FF
Not Used (1K words)
Not Used
0C00-0FFF-
0108-027F
Monitor Data Stack Pointer B (fixed location)
0107
Not Used
0104-0105
Monitor Data Stack Pointer A (fixed location)
0103
Monitor Command Stack Pointer A (fixed location)
0102
Not Used
0000-0101
DESCRIPTION
ADDRESS
(HEX)
0106
TABLE 32. TYPICAL SELECTIVE MESSAGE
MONITOR MEMORY MAP
(SHOWN FOR 16K RAM)
Refer to FIGURE 8 for an illustration of the Selective Message
Monitor operation. Upon receipt of a valid Command Word, the
BU-63825 will reference the Selective Monitor Lookup Table (a
fixed block of addresses) to check for the condition
(disabled/enabled) of the current command. If disabled, the BU-
63825 will ignore (and not store) the current message; if enabled,
the BU-63825 will create an entry in the Monitor Command Stack
at the address location referenced by the Monitor Command
Stack Pointer.
Similar to RT mode, The Sp’ACE II stores a Block Status Word,
16-bit Time Tag Word, and Data Block Pointer in the Message
Descriptor, along with the received 1553 Command Word follow-
ing reception of the Command Word. The Sp’ACE II writes the
Block Status and Time Tag Words at both the start and end of the
message. The Monitor Block Status Word contains indications of
message in-progress or message complete, bus channel,
Monitor Data Stack Rollover, RT-to-RT transfer and RT-to-RT
transfer errors, message format error, and other error conditions.
TABLE 26 shows the Message Monitor Block Status Word. The
Data Block Pointer references the first word stored in the Monitor
Data Stack (the first word following the Command Word) for the
current message. The BU-63825 will then proceed to store the
subsequent words from the message [possible second
Command Word, Data Word(s), Status Word(s)] into consecutive
locations in the Monitor Data Stack.
The size of the Monitor Command Stack is programmable to
256, 1K, 4K, or 16K words. The Monitor Data Stack size is pro-
grammable to 512, 1K, 2K, 4K, 8K, 16K, 32K, or 64K words.
Monitor interrupts may be enabled for Monitor Command Stack
Rollover, Monitor Data Stack Rollover, and/or End-of-Message
conditions. In addition, in the Word Monitor mode there may be
an interrupt enabled for a Monitor Trigger condition.
15
13
0
BLOCK STATUS WORD
TIME TAG WORD
DATA BLOCK POINTER
RECEIVED COMMAND
WORD
CONFIGURATION
REGISTER #1
MONITOR COMMAND
STACK POINTERS
MONITOR
COMMAND STACKS
CURRENT
AREA B/A
MONITOR DATA
STACKS
MONITOR DATA
BLOCK #N + 1
MONITOR DATA
BLOCK #N
CURRENT
COMMAND WORD
MONITOR DATA
STACK POINTERS
IF THIS BIT IS "0" (NOT SELECTED)
NO WORDS ARE STORED IN EITHER
THE COMMAND STACK OR DATA STACK.
IN ADDITION, THE COMMAND AND DATA
STACK POINTERS WILL NOT BE UPDATED.
NOTE
SELECTIVE MONITOR
LOOKUP TABLES
SELECTIVE MONITOR
ENABLE
(SEE NOTE)
OFFSET BASED ON
RTA4-RTA0, T/R, SA4
MONITOR DATA STACK
100% ROLLOVER INTERRUPT
MONITOR COMMAND STACK
100% ROLLOVER INTERRUPT
FIGURE 8. SELECTIVE MESSAGE MONITOR OPERATION
相关PDF资料
PDF描述
BU-63925D6-191 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQIP70
BU-63925F0-190 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CDFP70
BU-63925G3-190 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CDSO70
BU-64703F8-300 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP80
BU-64703B4-300 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CBGA80
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