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Philips Semiconductors
Enhanced Video Out
PRODUCT SPECIFICATION
7-15
7.16.2
VO Control Register (VO_CTL)
The VO_CTL register sets the operating mode, enables
interrupts, clears interrupt flags, and initiates EVO oper-
ations. Its fields are unchanged from the TM1000, as
shown in
Figure 7-29
and
Table 7-6
, however the pre-
cise functionality implemented by a field may be changed
if TM1300 functionality is enabled by software. Its hard-
ware
reset
value
is
CLOCK_SELECT = 3, PLL_S = 1 and PLL_T = 1, and
0x32400000
which
sets
all other bits to ‘0’. To ensure compatibility with future de-
vices, any undefined MMIO bits should be ignored when
read, and written as ‘0’s.
7.16.3
VO-Related Registers
The VO-related registers and their fields are shown in
Table 7-7
. Their fields are unchanged from the TM1000,
however their function may vary depending upon the
VO_STATUS (r)
0x10 1800
MMIO_BASE
offset:
VO_CLOCK (r/w)
0x10 1808
VO_FRAME (r/w)
0x10 180C
VO_FIELD (r/w)
0x10 1810
FREQUENCY
FRAME_PRESET
F2_OLAP
VO_CTL (r/w)
0x10 1804
MODE
FIELD_2_START
F2_VIDEO_LINE
VO_LINE (r/w)
0x10 1814
VIDEO_PIXEL_START
VO_IMAGE (r/w)
0x10 1818
IMAGE_HEIGHT
VO_YTHR (r/w)
0x10 181C
Y_THRESHOLD
VO_OLSTART (r/w)
0x10 1820
OL_START_LINE
VO_OLHW (r/w)
0x10 1824
OL_START_PIXEL
RESET
SLEEPLESS
CLOCK_SELECT
PLL_S
CLKOUT
SYNC_MASTER
VO_IO1_POS
VO_IO2_POS
OL_EN
BFR1_ACK
BFR2_ACK
HBE_ACK
BFR1_INTEN
URUN_INTEN
YTR_INTEN
URUN_ACK
YTR_ACK
LTL_END
VO_ENABLE
31
0
3
7
11
15
19
23
27
VO_YADD (r/w)
0x10 1828
Y_BASE_ADR or BFR1BASE_ADR
VO_UADD (r/w)
0x10 182C
U_BASE_ADR or BFR2BASE_ADR
VO_VADD (r/w)
0x10 1830
V_BASE_ADR or SIZE1
VO_OLADD (r/w)
0x10 1834
OL_BASE_ADR or SIZE2
VO_VUF (r/w)
0x10 1838
U_OFFSET(16)
VO_YOLF (r/w)
0x10 183C
Y_OFFSET(16)
V_OFFSET(16)
31
0
3
7
11
15
19
23
27
FRAME_LENGTH
F1_VIDEO_LINE
F1_OLAP
FRAME_WIDTH
IMAGE_WIDTH
IMAGE_VOFF
IMAGE_HOFF
GLOBAL ALPHA 1
OVERLAY_HEIGHT
OVERLAY_WIDTH
OL_OFFSET(16)
GLOBAL ALPHA 0
BFR2_INTEN
HBE_INTEN
PLL_T
reserved
31
0
3
7
11
15
19
23
27
31
0
CUR_Y(12)
3
7
11
15
CUR_X(12)
19
23
27
BFR1_EMPTY
BFR2_EMPTY
HBE
URUN
YTR
FIELD2
VBLANK
1
Indicates EVO functionality
Figure 7-29. EVO MMIO registers.