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SRCXEN:
DESTXPR:
/DESTXLD:
/DESTXUP:
DESTXCX:
DESTXEN:
/SRCYLD:
/SRCYUP:
SRCYCK:
SRCYEN:
/DESTYLD:
/DESTYUP:
DESTYCK:
DESTYEN:
SETWX:
/SETWY:
YCLK:
XSLM:
XSRM:
XELM:
XERM:
/XLAST:
/YLAST:
/GENSCC:
SXA clock enable signal (input)
Signal to load the Dll - 0 value in DRXA (input)
DXA load signal, 0: Load DRXA value in DXA; 1: Hold (input)
16 added to DXA by the clock (SRCXCX) when 0, but subtracted when 1
DXA clock (input)
DXA clock enable signal (input)
Signal to load the A12 - 0 value in SYA (input)
1 added to SYA by the clock (SRCYCK) when 0, but sub-tracted when 1
SYA clock (input)
SYA clock enable signal (input)
Signal to load the A12 - 0 value in SYA (input)
1 added to DYA by the clock (SRCYCK) when 0, but sub-tracted when 1
DYA clock (input)
DYA clock enable signal (input)
Signal to load the Dll - 0 value in LXA (input)
Signal to load the A12 - 0 value in YC (input)
Clock for reducing YC (input)
Signal for setting the left mask of the raster op. chip. SLIMIT is
unchanged if the XINC signal is 1 and SDEST is O. The mask is set at
the trailing edge of this signal. (output)
Signal for setting the right mask of the raster op. chip. SDEST is
unchanged if the XINC signal is 1 and SLIMIT is O. The mask is set at
the trailing edge of this signal. (output)
Signal for enabling the left mask of the raster op. chip. Becomes O
(enable) when XINC is 1, /PRERM is 0 and /CLRERM is 1 or if XINC is 0
and XLASTIN is 1. Mask is enabled when set to O. (output)
Signal for enabling the right mask of the raster op. chip. Becomes O
(enable) when XINC is 1 and XLASTIN is 1 or if XINC is 0, /PRERM is 0
and /CLRERM is 1. Mask is enabled when set to
o.
(output)
Becomes 0 when DXA and LXA are the same value. Used by ROCC. (Since
DXA is used, DXA and SXA must be set to the same value when reading
from the FB.) (output)
Becomes 0 when the value of YC is O. Used by ROCC. (output)
Switches data output to HD12 - 15. When 0, data required to set the
rop chip shift count is output. ( DRXA[ 0 - 3] -
SRXA[ 0 - 3]) When 1, the
value of BDO - BD3 is output unchanged. (input)
3-54
NWS-1510/1530/1580
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