Datasheet

Functional Description
39
May 2006 SLES043A
3.22.33 ROM Version Register
Address 82h
7 6 5 4 3 2 1 0
ROM version: 0x01 for 1.0, 0x20 for 2.00
Value = 0x02
3.22.34 RAM Patch Code Version Register
Address 83h
7 6 5 4 3 2 1 0
RAM patch code version: 0x10 for combined version 2-1, 0x20 for combined version 2-2
Value = 0x10
3.22.35 Vertical Line Count MSB Register
Address 84h
7 6 5 4 3 2 1 0
Reserved Vertical line count MSB
Vertical line count bits [9:8]
3.22.36 Vertical Line Count LSB Register
Address 85h
7 6 5 4 3 2 1 0
Vertical line count LSB
Vertical line count bits [7:0]
Registers 84h and 85h can be read and combined to extract the current vertical line count. This can be used
with nonstandard video signals such as a VCR in fast-forward or rewind modes to synchronize the
downstream video circuitry.
3.22.37 Interrupt Status Register B
Address 86h
7 6 5 4 3 2 1 0
Software
initialization
Macrovision detect
changed
Reserved
Field rate
changed
Line alternation
changed
Color lock
changed
H/V lock
changed
TV/VCR
changed
Software initialization:
0 = Software initialization is not ready (default).
1 = Software initialization is ready.
Macrovision detect changed:
0 = Macrovision detect status has not changed (default).
1 = Macrovision detect status has changed.
Field rate changed:
0 = Field rate has not changed (default).
1 = Field rate has changed.