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MCP434X/436X
DS22233A-page 38
© 2009 Microchip Technology Inc.
    
REGISTER 4-3:
TCON1 BITS 
R-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
D8
R3HW
R3A
R3W
R3B
R2HW
R2A
R2W
R2B
bit 8
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 8
D8: Reserved. Forced to “1”
bit 7
R3HW: Resistor 3 Hardware Configuration Control bit
This bit forces Resistor 3 into the “shutdown” configuration of the Hardware pin
1
 =
Resistor 3 is NOT forced to the hardware pin “shutdown” configuration
0
 =
Resistor 3 is forced to the hardware pin “shutdown” configuration
bit 6
R3A: Resistor 3 Terminal A (P3A pin) Connect Control bit 
This bit connects/disconnects the Resistor 3 Terminal A to the Resistor 3 Network
1
 =
P3A pin is connected to the Resistor 3 Network
0
 =
P3A pin is disconnected from the Resistor 3 Network
bit 5
R3W: Resistor 3 Wiper (P3W pin) Connect Control bit
This bit connects/disconnects the Resistor 3 Wiper to the Resistor 3 Network
1
 =
P3W pin is connected to the Resistor 3 Network
0
 =
P3W pin is disconnected from the Resistor 3 Network
bit 4
R3B: Resistor 3 Terminal B (P3B pin) Connect Control bit
This bit connects/disconnects the Resistor 3 Terminal B to the Resistor 3 Network
1
 =
P3B pin is connected to the Resistor 3 Network
0
 =
P3B pin is disconnected from the Resistor 3 Network
bit 3
R2HW: Resistor 2 Hardware Configuration Control bit 
This bit forces Resistor 2 into the “shutdown” configuration of the Hardware pin
1
 =
Resistor 2 is NOT forced to the hardware pin “shutdown” configuration
0
 =
Resistor 2 is forced to the hardware pin “shutdown” configuration
bit 2
R2A: Resistor 2 Terminal A (P0A pin) Connect Control bit
This bit connects/disconnects the Resistor 2 Terminal A to the Resistor 2 Network
1
 =
P2A pin is connected to the Resistor 2 Network
0
 =
P2A pin is disconnected from the Resistor 2 Network
bit 1
R2W: Resistor 2 Wiper (P0W pin) Connect Control bit
This bit connects/disconnects the Resistor 2 Wiper to the Resistor 2 Network
1
 =
P2W pin is connected to the Resistor 2 Network
0
 =
P2W pin is disconnected from the Resistor 2 Network
bit 0
R2B: Resistor 2 Terminal B (P2B pin) Connect Control bit
This bit connects/disconnects the Resistor 2 Terminal B to the Resistor 2 Network
1
 =
P2B pin is connected to the Resistor 2 Network
0
 =
P2B pin is disconnected from the Resistor 2 Network
Note 1:
These bits do not affect the wiper register values.