Sundance SMT329 - Manual (Page 38)

VME A1 VME bus master address bit A1
VXC1/2 Comms port control: 0 = VXC1, 1 = VXC2.
VME BRxx VME bus master bus request level
VME IntLev VME interrupt level
DS1 VME data strobe 1
DS0 VME data strobe 0
VME Iack VME interrupt vector
4.5.4.4 Control Register 5 = General Status Register
This status register provides access to the raw interrupt signals, which can be used for polling
or inside interrupt service routines to check which interrupt is active.
31-11 10 9 8 7-3 2 1 0
TIM4
IIOF0
TIM1 IIOF0 VME bus
error
Comm
port
-Txfull
Comm
port
-Rxemp
R R, 0 R, 0 R, 0 R R, 0 R, 0 R
4.5.4.5 Control Register 6 = Green LED activity indicators
There are 2 front panel green leds: led5 at the top and led6 at the bottom. These are intended
as a diagnostic aid by providing a visual indication of a large number of different activities on
the SMT329. Each led has a number of specific activities associated with it, and control
register 6 acts as a mask to enable or disable these activities from illuminating the led.
Generally led5 (at the top) illuminates when there is VME bus communication with the
SMT329, and is controlled by mask bits 31-16. Led6 (bottom) illuminates when there is TIM
activity on the SMT329, and is controlled by mask bits 15-0. The (un)mask bits available are:
31 30 29 28 27 26 25 24
Soft TIM4
Control
TIM4
Flash TIM4
SRAM TIM4
VME
Master TIM4
IIOF0 TIM4
IIOF1
User Manual SMT329 Page 38 of 52 Last Edited: 09/02/2007 10:58:00