Owner manual

VM162/VM172Chapter 2 Functional Description
Juli 23, 1997 Page 2- 9© PEP Modular Computers
2.5.1 VME Master Interface
2.5.1.1 Supported Data Transfer Types (VMEbus AM Codes)
The VM162/VM172 supports three addressing modes which are A32, A24 and A16. The following AM
codes according to the standard for VME64 are supported by the VM162/VM172.
Table 2.5: External Signal Connection
Note: For the user-defined codes 1F - 18 and 17 - 10, there are A24/D16 cycles generated by the
VM162/VM172.
AM Code (Hex) Function
3E A24 supervisory program access
3D A24 supervisory data access
3A A24 non-privaleged program access
39 A24 non-privaleged sata access
2D A16 supervisory access
29 A16 non-privaleged access
1F - 18 User Defined
17 - 10 User Defined
0E A32 supervisory program access
0D A32 supervisory data access
0A A32 non-privileged program access
09 A32 non-privileged data access