msm7664 Oki Semiconductor, msm7664 Datasheet - Page 55

• Manufacturer Part Number: msm7664
• Description: Ntsc/pal Digital Video Decoder
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Tri-state control of output-pin register (MISC)
Reset data request for VBID function register (AIREG)
Note:
An example of VBID module read sequence is shown below.
Default
Recommended Value
Default
Recommended Value
MISC[7:2]
MISC[1:0]
AIREG[7]
AIREG[6]
AIREG[5]
AIREG[4]
AIREG[3]
AIREG[2]
AIREG[1]
AIREG[0]
Register Name
Register Name
can be read from I
However, the stored contents cannot be erased unless an instruction is given by this
register.
Whether or not the above-described data exists is stored in the decoder. These results
Undefined
Tri-state control of output pin
Reset request for Color-stripe
Reset request for C.C data (odd field)
Reset request for C.C data (even field)
Reset request for CGMS data (odd field)
Reset request for CGMS data (even field)
Reset request for AGC (odd field)
Reset request for AGC (even field)
Reset request for WSS data
AIREG[7] AIREG[6] AIREG[5] AIREG[4] AIREG[3] AIREG[2] AIREG[1] AIREG[0]
MISC[7] MISC[6] MISC[5] MISC[4] MISC[3] MISC[2] MISC[1] MISC[0]
—
2
0
0
0
C-bus at subaddress $21.
Read data (iiC; 0x22 to 2d)
Reset flag (iiC; 0x1f)
Read flag (iiC; 0x21)
—
0
0
0
Write only
Write only
Yes
Flag enable
Start
*00: Output enable
—
01: All data outputs are Hi-Z.
10: All output pins are Hi-Z.
11: Undefined
0
0
0
Set to 0
No
—
0
0
0
<address: $1E>
<address: $1F>
1: Flag reset
1: Flag reset
1: Flag reset
1: Flag reset
1: Flag reset
1: Flag reset
1: Flag reset
1: Flag reset
—
0
0
0
—
0
0
0
PEDL7664-01
—
0
0
0
MSM7664
55/76
—
0
0
0