i2c.lst

A Programmer s Reference to BIOS, DOS, and Third-Party Calls

----------I8628--SF85------------------------
I2C 86h/28h/85h U - ITT VPX 32xx - FP - Window#2 Read Table: 
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF86------------------------
I2C 86h/28h/86h U - ITT VPX 32xx - FP - Window#2 Read Table: 
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF87------------------------
I2C 86h/28h/87h U - ITT VPX 32xx - FP - Window#2 Read Table: Blur/Alias Filter
Note:	this register is updated whenever Window#2 is latched via the
	  CommandWord
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF88------------------------
I2C 86h/28h/88h - ITT VPX 32xx - FP - Window#1 Load Table: Vertical Begin
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF89------------------------
I2C 86h/28h/89h - ITT VPX 32xx - FP - Window#1 Load Table: Vertical Lines In
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF8A------------------------
I2C 86h/28h/8Ah - ITT VPX 32xx - FP - Window#1 Load Table: Vertical Lines Out
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF8B------------------------
I2C 86h/28h/8Bh - ITT VPX 32xx - FP - Window#1 Load Table: Horizontal Begin
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF8C------------------------
I2C 86h/28h/8Ch - ITT VPX 32xx - FP - Window#1 Load Table: Horizontal Length
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF8D------------------------
I2C 86h/28h/8Dh - ITT VPX 32xx - FP - Window#1 Load Table: Horizontal NumPixels
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF8E------------------------
I2C 86h/28h/8Eh - ITT VPX 32xx - FP - Window#2 Load Table: Vertical Begin
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF8F------------------------
I2C 86h/28h/8Fh - ITT VPX 32xx - FP - Window#2 Load Table: Vertical Lines In
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF90------------------------
I2C 86h/28h/90h - ITT VPX 32xx - FP - Window#2 Load Table: Vertical Lines Out
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF91------------------------
I2C 86h/28h/91h - ITT VPX 32xx - FP - Window#2 Load Table: Horizontal Begin
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF92------------------------
I2C 86h/28h/92h - ITT VPX 32xx - FP - Window#2 Load Table: Horizontal Length
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF93------------------------
I2C 86h/28h/93h - ITT VPX 32xx - FP - Window#2 Load Table: Horizontal NumPixels
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SF99------------------------
I2C 86h/28h/99h - ITT VPX 3220 - FP - "InfoWord" status register
SeeAlso: I2C 86h/28h/9Ah,I2C 86h/28h/F0h,I2C 86h/28h,I2C 86h/29h

Bitfields for VPX 3220 InfoWord status register:
Bit(s)	Description	(Table I0021)
 1-0	reserved
 2	transport rate
	0  20.25 MHz
	1  13.5 MHz
 4-3	functional mode
	00 open
	01 forced
	10 scan
 11-5	reserved
SeeAlso: #I0036
----------I8628--SF9A------------------------
I2C 86h/28h/9Ah - ITT VPX 3220 - FP - "CommandWord" command register
SeeAlso: I2C 86h/28h/99h,I2C 86h/28h/F0h,I2C 86h/28h,I2C 86h/29h

Bitfields for VPX 3220 CommandWord command register:
Bit(s)	Description	(Table I0022)
 0	line standard (for back end)
 1	transport rate
	0  20.25 MHz
	1  13.5 MHz
 3-2	functional mode
	00 open
	01 forced
	10 scan
 4	Window#1 latch
	=1 latch new window definition on next vertical retrace; autom. cleared
 5	Window#2 latch
	=1 latch new window definition on next vertical retrace; autom. cleared
 11-6	reserved
SeeAlso: #I0035
----------I8628--SFA0------------------------
I2C 86h/28h/A0h - ITT VPX 32xx - FP - ACC Reference Level (Color Saturation)
SeeAlso: I2C 86h/28h,I2C 86h/29h,#I0019
----------I8628--SFA3------------------------
I2C 86h/28h/A3h - ITT VPX 32xx - FP - ACC Multiplier (SECAM Dr to Cr)
SeeAlso: I2C 86h/28h,I2C 86h/29h,#I0019
----------I8628--SFA4------------------------
I2C 86h/28h/A4h - ITT VPX 32xx - FP - ACC Multiplier (SECAM Db to Cb)
SeeAlso: I2C 86h/28h,I2C 86h/29h,#I0019
----------I8628--SFA5------------------------
I2C 86h/28h/A5h U - ITT VPX 32xx - FP - Measured Color-Burst Amplitude
Note:	this register is documented for the VDP 3108, but not the VPX 32xx
SeeAlso: I2C 86h/28h,I2C 86h/29h,#I0019
----------I8628--SFA8------------------------
I2C 86h/28h/A8h - ITT VPX 32xx - FP - Amplitude Color Killer Threshold
SeeAlso: I2C 86h/28h,I2C 86h/29h,#I0019
----------I8628--SFA9------------------------
I2C 86h/28h/A9h - ITT VPX 32xx - FP - Amplitude Color Killer Hysteresis
SeeAlso: I2C 86h/28h,I2C 86h/29h,#I0019
----------I8628--SFB2------------------------
I2C 86h/28h/B2h - ITT VPX 32xx - FP - Sync Amplitude Reference
Note:	the value in this location controls the automatic gain control;
	  setting both this location and location B5h to 000h disables AGC
SeeAlso: I2C 86h/28h/B5h,I2C 86h/28h/BEh,I2C 86h/29h,#I0019
----------I8628--SFB5------------------------
I2C 86h/28h/B5h u - ITT VPX 32xx - FP - Sync Amplitude Reference???
Note:	the value in this location helps control the automatic gain control;
	  setting both location B2h and this location to 000h disables AGC
SeeAlso: I2C 86h/28h/B2h,I2C 86h/28h/BEh,I2C 86h/29h,#I0019
----------I8628--SFBE------------------------
I2C 86h/28h/BEh - ITT VPX 32xx - FP - Start Value for Automatic Gain Control
Size:	6 bits
Note:	if automatic gain control has been disabled by writing 000h to FP-RAM
	  locations B2h and B5h, then the actual gain value can be adjusted
	  by writing this location; the current gain value may be read from
	  location 20h
SeeAlso: I2C 86h/28h/B2h,I2C 86h/28h/B5h,I2C 86h/28h/20h,I2C 86h/29h,#I0019
----------I8628--SFC0------------------------
I2C 86h/28h/C0h U - ITT VPX 32xx - FP - Horizontal Retrace Frequency
Desc:	this appears to be the base frequency from which the HPLL attempts to
	  lock onto the video signal (default = 700dec)
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SFC1------------------------
I2C 86h/28h/C1h U - ITT VPX 32xx - FP - Horizontal Offset
Desc:	signed offset from horizontal retrace to start of video data
	  (min E52h, max 354h)
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SFD0------------------------
I2C 86h/28h/D0h U - ITT VPX 32xx - FP - Blurring/Aliasing Filter Array
Size:	32 entries of 6 bits each (16 locations in FPRAM)
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8628--SFE7------------------------
I2C 86h/28h/E7h - ITT VPX 32xx - FP - Vertical Lock
SeeAlso: I2C 86h/28h,I2C 86h/29h,#I0019

Bitfields for VPX 32xx Vertical Lock:
Bit(s)	Description	(Table I0023)
 0	enable vertical standard lock
 11-1	expected number of lines per field
----------I8628--SFEB------------------------
I2C 86h/28h/EBh - ITT VPX 32xx - FP - Lines in Last Frame
SeeAlso: I2C 86h/28h,I2C 86h/29h,#I0019
----------I8628--SFF0------------------------
I2C 86h/28h/F0h - ITT VPX 32xx - FP - "CommandWord" control register
SeeAlso: I2C 86h/28h/F1h,I2C 86h/28h/99h,I2C 86h/28h,I2C 86h/29h

Bitfields for VPX 32xx CommandWord control register:
Bit(s)	Description	(Table I0024)
 0	transport rate
	0  20.25 MHz
	1  13.5 MHz
 1	transport rate latch
	=1 latch new transport rate (automatically cleared)
 3-2	timing mode
	00 open	  (always synchronized to video)
	01 forced (sync to video within certain limits)
	1x scan	  (free-running, no video data output)
 4	timing mode latch
	=1 latch new timing mode on next vertical retrace (autom. cleared)
 5	Window#1 latch
	=1 latch new window definition on next vertical retrace; autom. cleared
 6	Window#2 latch
	=1 latch new window definition on next vertical retrace; autom. cleared
 7	(undoc) if set, image freezes
 8	odd/even mode
	=0 always toggles
	=1 follows video signal's odd/even fields
 11-9	reserved (0)
SeeAlso: #I0038,#I0035
----------I8628--SFF1------------------------
I2C 86h/28h/F1h - ITT VPX 32xx - FP - "InfoWord" status register
SeeAlso: I2C 86h/28h,I2C 86h/29h

Bitfields for VPX 32xx InfoWord status register:
Bit(s)	Description	(Table I0025)
 2-0	reserved
 5-3	currently-active TV standard (see #I0039)
 6	currently-active line standard
	0 525 lines / 60 fps
	1 625 lines / 50 fps
 11-7	???
Note:	image freezes if bit 1 set on VPX 3220A
SeeAlso: #I0037,#I0036

(Table I0026)
Values for ITT VPX television standard:
 0	PAL B,G,H,I	625/50	4.433618 MHz
 1	NTSC M		525/60	3.579545 MHz
 2	SECAM		625/50	4.286	MHz
 3	NTSC 44		525/60	4.433618 MHz
 4	PAL M		525/60	3.575611 MHz
 5	PAL N		625/50	3.582056 MHz
 6	PAL 60		525/60	4.433618 MHz
 7	NTSC Comb	525/60	3.579545 MHz
----------I8628--SFF2------------------------
I2C 86h/28h/F2h - ITT VPX 32xx - FP - TV Standard, Write
SeeAlso: I2C 86h/28h,I2C 86h/29h

Bitfields for VPX 32xx TV standard, write:
Bit(s)	Description	(Table I0027)
 0	selection
	0 automatic
	1 manual
 3-1	television standard (see #I0039)
 4	manual standard latch
	=1 latch television standard (automatically cleared)
 5	S-VHS select
	0 composite video
	1 S-VHS video
 9-6	threshold for standard search
	1111 'perfect' (maximum score)
	0000 'no video' (minimum score)
 11-10	reserved (0)
SeeAlso: #I0041
----------I8628--SFF3------------------------
I2C 86h/28h/F3h - ITT VPX 32xx - FP - TV Standard, Read
SeeAlso: I2C 86h/28h,I2C 86h/29h

Bitfields for VPX 32xx TV standard, read:
Bit(s)	Description	(Table I0028)
 0	VACT (video active) suppressed
 1	recognition routine is running
 4-2	detected TV standard (see #I0039)
 5	'no video' flag
 9-6	high score from recognition routine
	1111 'perfect' (maximum score)
	0000 'no video' (minimum score)
 10	line standard
	0 525 lines / 60 fps
	1 625 lines / 50 fps
 11	reserved
SeeAlso: #I0040
----------I8628--SFF4------------------------
I2C 86h/28h/F4h U - ITT VPX 32xx - FP - ???
SeeAlso: I2C 86h/28h,I2C 86h/29h
----------I8629------------------------------
I2C 86h/29h - ITT VPX 32xx - FP status
Access:	Read-Only
SeeAlso: I2C 86h/26h,I2C 86h/27h,I2C 86h/28h

Bitfields for VPX 32xx/VDP 3108 FP status:
Bit(s)	Description	(Table I0029)
 0	write request in progress
 1	read request in progress
 2	busy
 7-3	reserved (read as ones)
----------I862E------------------------------
I2C 86h/2Eh U - ITT VPX 32xx - ??? (Test Register - Front End, Chroma 2?)
Notes:	this register appears to correspond to the VDP 3108 register
	only bits 4-0 appear to be used; values of 04h-1Fh cause either a
	  black-and-white display or flickering color
SeeAlso: I2C 8Ah/2Eh
----------I862F------------------------------
I2C 86h/2Fh U - ITT VPX 32xx - ??? (Test Register - Front End, Chroma 1?)
Notes:	this register appears to correspond to the VDP 3108 register
	bits 3 and 5 cause a black-and-white display if either is set; the
	  remaining bits appear to have no effect
SeeAlso: I2C 8Ah/2Fh
----------I8630------------------------------
I2C 86h/30h - ITT VPX 32xx - Luma Notch Frequency
SeeAlso: I2C 86h/31h,I2C 8Ah/30h

Bitfields for VPX 32xx luma notch frequency:
Bit(s)	Description	(Table I0030)
 5-0	frequency  ( fs / 2N cos^-1(N) )
 6	reserved
 7	SECAM switch
SeeAlso: #I0012
----------I8631------------------------------
I2C 86h/31h - ITT VPX 32xx - Luma/Chroma Matching Delay
SeeAlso: I2C 86h/31h"VDP 3108",I2C 86h/30h"VPX 32xx"

Bitfields for VPD 3108/VPX 32xx luma/chroma matching delay:
Bit(s)	Description	(Table I0031)
 4-0	delay in clocks (+19), higher numbers shift chroma right
 7-5	reserved
SeeAlso: #I0012,#I0013
----------I8632------------------------------
I2C 86h/32h U - ITT VPX 32xx - Unimplemented
Note:	this register appears to correspond to a VDP 3108 register which is
	  not applicable to the VPX series
SeeAlso: I2C 8Ah/32h
----------I8633------------------------------
I2C 86h/33h - ITT VPX 32xx - Input Selector
SeeAlso: I2C 8Ah/33h

Bitfields for VDP 3108/VPX 32xx input selector:
Bit(s)	Description	(Table I0032)
 1-0	luma ADC select
	00 VIN3
	01 VIN2
	10 VIN1
	reserved
 2	chroma ADC select
	0 VIN1
	1 CIN  (dedicated S-VHS chroma input)
 3	clamping for chroma A/D converter
 4	(VDP3108 only) internal/external luma ADC clamp enable
 5	reserved
 6	(VPX32xx only) stand-by luma ADC
 7	(VPX32xx only) stand-by chroma ADC
----------I8634------------------------------
I2C 86h/34h - ITT VPX 32xx - Standard Select
SeeAlso: I2C 8Ah/34h

Bitfields for VDP 3108/VPX 32xx standard select:
Bit(s)	Description	(Table I0033)
 1-0	television standard
	00 SECAM
	01 PAL
	   or NTSC compensated (VDP3108 only???)
	10 NTSC (standard)
	   or simple PAL (VDP3108 only???)
	11 NTSC (comb filter)
 2	S-VHS mode
 3	chroma polarity
	0 signed
	1 binary offset
 4	(VPX 32xx only) PAL/MAC mode
 5	force color decoder (YCbCr-to-output bypass)
 7-6	reserved
--------V-I8635------------------------------
I2C 86h/35h U - ITT VPX 32xx - Unimplemented
SeeAlso: I2C 8Ah/32h
--------V-I8636------------------------------
I2C 86h/36h U - ITT VPX 32xx - Unimplemented
SeeAlso: I2C 8Ah/32h
--------V-I8637------------------------------
I2C 86h/37h U - ITT VPX 32xx - Unimplemented
SeeAlso: I2C 8Ah/32h
--------V-I8638------------------------------
I2C 86h/38h U - ITT VPX 32xx - Unimplemented
SeeAlso: I2C 8Ah/32h
--------V-I8639------------------------------
I2C 86h/39h U - ITT VPX 32xx - ??? (Main Test Register?)
Notes:	this register appears to correspond to the VDP 3108 register