Datasheet

TVP5151
SLES241E–SEPTEMBER 2009–REVISED OCTOBER 2011 www.ti.com
3.21.28 Interrupt Configuration Register B
Address 1Eh
Default 00h
7 6 5 4 3 2 1 0
Reserved Interrupt
polarity B
Interrupt polarity B
0 = Interrupt B is active low (default).
1 = Interrupt B is active high.
Interrupt polarity B must be the same as interrupt polarity A of Interrupt Configuration Register A at
Address C2h.
Interrupt Configuration Register B is used to configure the polarity of interrupt B on the external interrupt
pin. When the interrupt B is configured for active low, the pin is driven low when active and high
impedance when inactive (open-drain). Conversely, when the interrupt B is configured for active high, it is
driven high for active and driven low for inactive.
Note: An external pullup resistor (4.7 kΩ to 10 kΩ) is required when the polarity of the external interrupt
terminal (pin 27) is configured as active low.
3.21.29 Indirect Register Data
Address 21h-22h
Default 00h
Address 7 6 5 4 3 2 1 0
22h Data[15:8]
21h Data[7:0]
I
2
C registers 21h and 22h can be used to write data to or read data from indirect registers. See I
2
C
registers 23h and 24h.
3.21.30 Indirect Register Address
Address 23h
Default 00h
7 6 5 4 3 2 1 0
ADDR[7:0]
ADDR[7:0] = LSB of indirect address
48 Functional Description Copyright © 2009–2011, Texas Instruments Incorporated
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