User manual

12
Reg. 00
Status
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Read-only
Read Reserved INIT MPS FIFOE FIFOF INT
INIT  Init Status (1 = initialized since last power up, 0 = not initialized since last power up)
MPS  Multiplexer Size (0 = 16 to 1 multiplexer, 1 = dual 8 to 1 multiplexer, see note)
FIFOE  FIFO Empty Status (1 = FIFO currently empty, up to 8 writes available and not busy)
FIFOF  FIFO Full Status (1 = FIFO currently full, additional writes are lost)
INT  Interrupt Status (if enabled; 1 = interrupt line asserted, 0 = interrupt line not asserted)
Note: The multiplexer size is controlled by the jumper discussed in Section 3.2.1. This bits indicates
the configuration of the jumper.
Reg. 02
Control
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Reserved TM DPE STE INTE RST
Read Reserved TM DPE STE INTE RST
TM  Timer Mode (proper operation is guaranteed only for the time = 8ms)
0 0 8ms
0 1 2ms
1 0 4ms
1 1 64ms
DPE  Driver Power Enable (1 = enables power to relay drivers, 0 = removes power)
STE  Self-Test Enable (1 = disable power to all row & column drivers and allows testing the
operation of the FIFO without causing relay movement, 0 = allows row & column drivers
to be powered (if driver power is enabled). Be sure the FIFO is empty before returning
this bit to 0.
INTE  Interrupt Enable (1 = enables interrupts, 0 = disables interrupts)
RST  Reset (1 = initiates a soft reset, 0 = releases module from reset condition)
Figure 5. I/O Registers
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