Datasheet

TVP5147M1
www.ti.com SLES140G –JULY 2005–REVISED FEBRUARY 2012
Table 2-58. GPIO Input 2 Register
Subaddress 41h
Read only
7 6 5 4 3 2 1 0
GPIO AVID GLCO VS HS FID C_9 C_8
GPIO input terminal status:
0 = Input is a low
1 = Input is a high
AVID input terminal status:
0 = Input is a low
1 = Input is a high
GLCO input terminal status:
0 = Input is a low
1 = Input is a high
VS input terminal status:
0 = Input is a low
1 = Input is a high
HS input status:
0 = Input is a low
1 = Input is a high
FID input status:
0 = Input is a low
1 = Input is a high
C_x input status:
0 = Input is a low
1 = Input is a high
These status bits are valid only when terminals are used as inputs and are updated at every line.
Table 2-59. AFE Coarse Gain for CH 1 Register
Subaddress 46h
Default 20h
7 6 5 4 3 2 1 0
CGAIN 1 [3:0] Reserved
CGAIN 1 [3:0]:
Coarse Gain = 0.5 + (CGAIN 1)/10 where 0 ≤ CGAIN 1 ≤ 15
This register works only in manual gain control mode. When AGC is active, writing to any value is ignored.
1111 = 2
1110 = 1.9
1101 = 1.8
1100 = 1.7
1011 = 1.6
1010 = 1.5
1001 = 1.4
1000 = 1.3
0111 = 1.2
0110 = 1.1
0101 = 1
0100 = 0.9
0011 = 0.8
0010 = 0.7(default)
0001 = 0.6
0000 = 0.5
Copyright © 2005–2012, Texas Instruments Incorporated Functional Description 61
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