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DESCRIPTION OF SMIP II MODULE REGISTERS - A24 / A32 - EXTENDED MEMORY
Each module is assigned 1 k (1024) bytes of memory as shown in the SMIP II Configuration/Relay Register Map for A24/A32 address space. The upper 512 bytes of memory space is used for module configuration registers. The following describes these registers.
Control Register - Read and Write
ADDR | |
Unused |
0 = Normal polarity relay data is read back from this module 1 = Inverted polarity relay data is read back from this module Pon state = 0
| VXI |
| SMIP |
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| SMIP |
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| Backplane |
| Interface |
| Relay |
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| Board |
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| Module |
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| Write a "1" to |
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| "1" to close | "1" | Relay: |
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| close relay |
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| relay | ||
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| 1 = Closed |
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| 0 = Open |
| Relay Data |
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D9 | Read Back | w/ bit set to 0: | Relay Data |
| "0" returned |
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| Polarity Bit | write a "1" = |
| from module |
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| Read Back |
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| "0" returned |
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| Polarity Bit |
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| 1=inverted |
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| "1" returned |
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| 1 | 0 |
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| This bit may be used to invert the relay data read back from the | ||
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| Control, Delay, and Status Register read backs are not effected by this bit. | ||
D8 | ACFAILN | 0 | = ACFAILN is enabled to reset this module's relays | |
1 | = ACFAILN is disabled from resetting this module's relays | |||
Enable Bit | ||||
| Pon state = 0 | |||
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SM7100 Programming | 29 |
