== TLU TTL I/O Control ==

 * [[SDB Device ID]] 0xefa5e8d1
 * Hardware: [[TLU40LVDS]], [[TLU16SFP]]
 * [[TLU40LVDS Register Map|TLU40LVDS registers]], [[TLU16SFP Register Map|TLU16SFP registers]]

=== Registers ===

 * 00h - '''Identification''' ''efa5e8d1'', 32 bits, RO static
 * 04h - '''Number of channels''', RO static

Other registers: (Reg #+10h) = TTL I/O #, R/W
 . [14:0] - input or output selector
 . [15] - output enable: 1 - output, 0 - input

Selector decode for inputs
 . 0 - trigger
 . 1 - veto
 . 2 - ltr[0]
 . 3 - ltr[1]
 . 4 - ltr[2]
 . 5 - ltr[3]

Selector decode for outputs
 . 0 - accepted trigger
 . 1 - rejected trigger
 . 2 - busy
 . 3 - TOF detector trigger
 . 4 - luminosity detector trigger
 . 5 - pulse per second (WR or Fe-Link)
 . 6 - logic 0
 . 7 - logic 1

For example:
 * if
  * ''address'' = 0x11
  * ''data'' = 0x8004
 * then
  * ttl[1] - output ''luminosity detector trigger''

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[[CategorySDB|SDB]] [[CategoryTLU|TLU]]