MB87P2020 Datasheet, PDF (139/356 Pages) Fujitsu Component Limited. – Colour LCD/CRT/TV Controller

Video Interface Controller
Symbol
EXTPCTL
CLKPDR
Table 3-1: VIC register description
Address.
h4038
Description/Definition
Polarity control for external video synchronization signals. Those set-
tings only effects if "external video source" is selected
(VICVISYN[1:0] = 0b10)
hFC04
VREF[0]: vsync
— 0: high active
— 1: low active
HREF[1]: hsync
— 0: high active
— 1: low active
PARITY[2]: parity
— 0: polarity unchanged
— 1: invert polarity
ALPHA[3]: alpha
— 0: high active
— 1: low active
VII[12]: video clock invert
— 0: don’t invert clock
— 1: invert clock
3.2 Register Description
VICSTART (4000H):
GDC stores video fields or frames in different memory areas called layers. The VICSTART register defines
layer start coordinates in x- and y-direction. Note that coordinates are equal for all layers used for video
input (one, two or three layer).
Related registers: VICFCTRL[11:8], VICFCTRL[7:4], VICFCTRL[3:0]
VICSTART[13:0] (Y)
field or frame
layer
Figure 3-1: Start coordinate definitions
VICALPHA (4004H):
The VICALPHA register contains the value of color which will be mapped if alpha key signal is active and
alpha_mode is enabled (see register VICCTRL[6]). Note that bit occupancy depends on color mode (see
figure 3-2).
Related register: VICCTRL[6]
VIC settings
Page 139