Technical Data
MC132x Users Manual Rev. 0.22
9.6.3 Frame Valid (FVAL)
44
The rising edge of FVAL marks that line, that is programmed in Register r1.
FVAL
tfdv
tfdvl
tfdvh
Tfdvh is equal to the value programmed in Register r3 multiplied with
time/line
. Tfdvl in
synchronous
mode
is equal to one
time/line
.
9.6.4 Exposure Signal EXP, to be input on TRIG
The EXP signal is positive active if register 7, Bit 8 = 0, negativ active if register 7, Bit 8 = 1. EXP Sig-
nal may not be asserted while the previous image is output (FDV active)
The sensors exposure starts and the
strobe output
activates (texp, (1) three sensor clocks after the active
edge of the EXP signal (tshut), and ends up to 135 sensor clocks after deactivation (2).
1)
LDV
2)
image n-1
image n
tshut
exp. image n
texp
FDV
EXP
1) The active edge of the EXP signal clears the horizontal counter.
2) End of exposure time is synchronised with the internal
horizontal counter.
EXP is also used as enable signal for ImageBLITZ shutter release.
