
A
Configure and Environment Commands
Table A-1. ENV Command Parameters (Continued)
ENV Parameter and Options | Default | Meaning of Default | |
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Short I/O (VMEbus A16) Enable [Y/N] | Y | Yes, Enable the Short I/O |
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| Address Decoder. | |
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Short I/O (VMEbus A16) Control | 01 | Defines the access characteristics | |
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| for the address space defined | |
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| with the Short I/O address | |
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| decoder. Default is $01. | |
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Y | Yes, Enable the | ||
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| Decoder. | |
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02 | Defines the access characteristics | ||
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| for the address space defined | |
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| with the | |
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| Default is $02. | |
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ROM Access Time Code | 03 | This defines the ROM access | |
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| time. The default is $03, which | |
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| sets an access time of 180 ns. | |
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Flash Access Time Code | 02 | This defines the FLASH access | |
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| time. The default is $02, which | |
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| sets an access time of 140 ns. | |
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MCC Vector Base | 05 | Base interrupt vector for the | |
VMEC2 Vector Base #1 | 06 | component specified. Default: | |
VMEC2 Vector Base #2 | 07 | MCchip = $05, VMEchip2 Vector | |
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| 1 = $06, VMEchip2 Vector 2 = | |
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| $07. |
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VMEC2 GCSR Group Base Address | D2 | Specifies the group address | |
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| ($FFFFXX00) in Short I/O for | |
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| this board. Default = $D2. | |
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VMEC2 GCSR Board Base Address | 00 | Specifies the base address | |
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| ($FFFFD2XX) in Short I/O for | |
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| this board. Default = $00. | |
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VMEbus Global Time Out Code | 01 | This controls the VMEbus | |
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| timeout when systems | |
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| controller. Default $01 = 64 μs. | |
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Local Bus Time Out Code | 02 | This controls the local bus | |
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| timeout. Default $02 = 256 μs. | |
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VMEbus Access Time Out Code | 02 | This controls the local bus to | |
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| VMEbus access timeout. Default | |
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| $02 = 32 ms. | |
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MVME162 Embedded Controller Installation Guide |