Table 3–1:
Control and status registers
I
2
C Sub-
address
Number
of bits
Mode
Function
ADVANCE INFORMATION
Default
Name
FP Interface
h’35
8
r
FP status
bit [0]
bit [1]
bit [2]
bit[8:0]
bit[11:9]
bit[8:0]
bit[11:9]
bit[11:0]
–
write request
read request
busy
9-bit FP read address
reserved, set to zero
9-bit FP write address
reserved, set to zero
FP data register, reading/writing to this
register will autoincrement the FP read/
write address. Only 16 bit of data are
transferred per I
2
C telegram.
Black Line Detector
h’12
16
w/r
read only register, do not write to this register! After reading,
LOWLIN and UPLIN are reset to 127 to start a new measure-
ment.
bit[6:0]
number of lower black lines
bit[7]
always 0
bit[14:8]
number of upper black lines
bit[15]
0/1
normal/black picture
Pin Circuits
h’1F
16
w/r
SYNC PIN CONTROL:
bit[2:0] 0..7
reserved (set to 0)
bit[3]
0/1
pushpull/tristate for AVO Pin
bit[4]
0/1
pushpull/tristate for other video SYNC Pins
bit[5]
0
reserved (set to zero)
CLOCK/FIFO PIN CONTROL:
bit[6]
0/1
pushpull/tristate for LLC1
bit[7]
0/1
pushpull/tristate for LLC2
bit[8]
0
reserved (set ot 0)
bit[9]
0/1
pushpull/tristate for FIFO control pins
LUMA/CHROMA DATA PIN (LB[7:0], CB[7:0]) CONTROL:
bit[10]
0/1
tristate/pushpull
for Chroma Data pins
bit[11]
0/1
tristate/pushpull
for Luma Data pins
bit[15:12]
reserved (set to 0)
SYNC GENERATOR CONTROL:
bit[1:0] 00
AVO and active Y/C data at same time
01
AVO precedes Y/C data one clock cycle
10
AVO precedes Y/C data two clock cycles
11
AVO precedes Y/C data three clock cycles
bit[2]
0/1
positive/negative polarity for HS signal
bit[3]
0/1
positive/negative polarity for HC signal
bit[4]
0/1
positive/negative polarity for AVO signal
bit[5]
0/1
positive/negative polarity for VS signal
bit[6]
0/1
positive/negative polarity for HELP signal
bit[7]
0/1
positive/negative polarity for INTLC signal
TRPAD
0
0
0
0
0
0
0
0
0
0
0
0
0
AVODIS
SNCDIS
–
BLKLIN
–
–
–
FPRD
FPWR
FPDAT
FPSTA
h’36
h’37
h’38
16
16
16
w
w
w/r
LOWLIN
UPLIN
BLKPIC
LLC1DIS
LLC2DIS
FFSNCDIS
CDIS
YDIS
SYNCMODE
h’20
8
w/r
AVOPRE
0
0
0
0
0
0
HSINV
HCINV
AVOINV
VSINV
HELPINV
INTLCINV
32
Micronas
MICRONAS [ MICRONAS ]
