LM1238AAD/NA NOPB National Semiconductor, LM1238AAD/NA NOPB Datasheet - Page 19

• Manufacturer Part Number: LM1238AAD/NA NOPB
• Manufacturer: National Semiconductor

Specifications of LM1238AAD/NA NOPB

• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Package Type: MDIP
• Lead Free Status / RoHS Status: Compliant

LM1238 Address Map
Pre-Amp Interface I
Control Register Definitions
OSD INTERFACE REGISTERS
Bar Indicator and OSD Interface Control Register (I
Register Name (address): BAR_CNTL (0x0800h)
Bits 2–0 OSD Controls. These three bits turn on and off the OSD window and allow the up, down, left and right icons to be
0x0800h-0x0805h
0x0810h-0x081Fh
BAR_CNTL
ICN_INDX
HORIZ
VERT
ALT
VERTBLNK
Address Range
BGAINCTRL
GGAINCTRL
RGAINCTRL
CONTRCTL
DAC2CTRL
DAC3CTRL
DAC1CTRL
DAC4CTRL
DCF/OSD-Con/DC
GLOBALCTRL
CLMP/PLL/VBL/OOR
SRTSTCTRL
Register
Register
highlighted in color 1 out of the 8 colors available.
Note that when the highlight bits are turned on, the control codes will be reset to 001b, after 32 vertical field periods.
Reading back the register more than 32 fields after a write to these bits will give 00 for the bits 1 and 2.
BAR4
0x0800h
0x0801h
0x0802h
0x0803h
0x0804h
0x0805h
Address
7
2
0
0
0
1
0
Address
0x0810
0x0811
0x0812
0x0813
0x0814
0x0815
0x0816
0x0817
0x0818
0x0819
0x81E
0x81F
R/W
R/W
R/W
1
0
0
1
0
1
BAR3
2
0x00h
0x00h
0xD0h
0xCCh
0x04h
0x10h
6
TABLE 4. LM1238 Pre-Amplifier Interface I
C Registers
Default
0
0
1
0
0
1
Default
0xE0h
0xE0h
0xE0h
0xE0h
0x80h
0x80h
0x80h
0x80h
0x94h
0x00h
0x16h
0x00h
Turn off OSD
Turn on OSD and normal button colors
Turn on OSD and highlight up arrow for 32 vertical periods.
Turn on OSD and highlight down arrow for 32 vertical
periods.
Turn on OSD and highlight “+” for 32 vertical periods.
OSD register set up data
Preamp register set up data
TABLE 5. OSD Interface I
BAR2
*
*
*
*
5
RSV
RSV
TABLE 3. I
D7
RSV
RSV
RSV
RSV
RSV
RSV
INT
PPL[1:0]
D7
HT[1:0]
BAR1
2
C address 0x0800h)
4
RSV
D6
RSV
2
DCONFIG[1..0]
NV
D6
C Address Space
ICON[3:0]
19
BAR[4:0]
BAR0
ASO1
3
CLMP
D5
RSV
2
D5
C Registers
D_ID[5:0]
CNTL2
ASO0
Description
2
DAC2[7:0]
DAC3[7:0]
DAC1[7:0]
DAC4[7:0]
RSV
FRE
D4
D4
2
C Registers
OSD_CONT[1..0]
CONTRAST[6:0]
BGAIN[6:0]
GGAIN[6:0]
RGAIN[6:0]
VB[6:0]
CNTL1
D3
OOR
HPOS[5:0]
VPOS[5:0]
RSV
D3
1
D2
CNTL0
INDEX[2:0]
ALT[3:0]
RSV
VBL
0
D2
DC_OFFSET[2..0]
CNTL[2:0]
D1
RSV
D1
PS
PFR[1:0]
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SRST
D0
D0
BV