Sundance SMT329 - Manual (Page 23)

These registers are decoded in the VME A16 space, which means that the VME address
modifiers must be set to either of the following:
Hex Code VME
space
Function
2D A16 Short supervisory access
29 A16 Short non privileged access
The VME address bits are decoded as follows:
VME Address
bit Compare to Comment
15 1 Must be high
14 1 Must be high
13 SW1/1 On = 0 Off = 1
12 SW1/2 On = 0 Off = 1
11 SW1/3 On = 0 Off = 1
10 SW1/4 On = 0 Off = 1
9 SW1/5 On = 0 Off = 1
8 SW1/6 On = 0 Off = 1
7 SW1/7 On = 0 Off = 1
6 SW1/8 On = 0 Off = 1
5-1 - Select individual registers
Note that VME address bits A16 and above are ignored.
Example: SW1 switches 1-7 set to off, switch 8 set to on gives a VME A16 base address of
0xff80.
VME address bits 5 and below decode the following 16 bit wide registers:
Offset (hex) Register
00-01 Board ID
02-03 Device type
04-05 Status / Control
06-07 SRAM base address
08-09 I/O base address
0A-3B Unused
User Manual SMT329 Page 23 of 52 Last Edited: 09/02/2007 10:58:00