Datasheet

83
SLES084C − August 2007 TVP5146
2.12.9 VDP VPS/Gemstar Data Register
Subaddress 80 0700h–80 070Ch
VPS: Read only
Subaddress 7 6 5 4 3 2 1 0
80 0700h VPS byte 1
80 0701h VPS byte 2
80 0702h VPS byte 3
80 0703h VPS byte 4
80 0704h VPS byte 5
80 0705h VPS byte 6
80 0706h VPS byte 7
80 0707h VPS byte 8
80 0708h VPS byte 9
80 0709h VPS byte 10
80 070Ah VPS byte 11
80 070Bh VPS byte 12
80 070Ch VPS byte 13
These registers contain the entire VPS data line except the clock run-in code or the start code.
Gemstar: Read only
Subaddress 7 6 5 4 3 2 1 0
80 0700h Gemstar frame code
80 0701h Gemstar byte 1
80 0702h Gemstar byte 2
80 0703h Gemstar byte 3
80 0704h Gemstar byte 4
80 0705h Reserved
80 0706h Reserved
80 0707h Reserved
80 0708h Reserved
80 0709h Reserved
80 070Ah Reserved
80 070Bh Reserved
80 070Ch Reserved
2.12.10 VDP FIFO Read Register
Subaddress 90 1904h
Read only
7 6 5 4 3 2 1 0
FIFO data [7:0]
FIFO data [7:0]: This register is provided to access VBI FIFO data through the host port. All
forms of teletext data come directly from the FIFO, while all other forms of VBI data can be
programmed to come from registers or from the FIFO. If the host port is to be used to read data
from the FIFO, then bit 0 (host access enable) in the FIFO output control register at subaddress
C0h must be set to 1.