MSP430F4796IPZ Datasheet, PDF (72/89 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F47x
MIXED SIGNAL MICROCONTROLLER
SLAS629A -- MARCH 2009 -- REVISED APRIL 2009
APPLICATION INFORMATION
Port P3 pin schematic: P3.1 and P3.2, input/output with Schmitt trigger
LCDS24
Segment Sy
Pad Logic
P3DIR.x
0
Module
direction
1
P3OUT.x
0
Module X OUT
1
P3SEL.x
P3IN.x
Module X IN
Direction
0: Input
1: Output
EN
D
Bus
Keeper
EN
P3.1/UCB0SIMO/UCB0SDA/S26
P3.2/UCB0SOMI/UCB0SCL/S27
Port P3 (P3.1 and P3.2) pin functions
PIN NAME (P3.X) X
FUNCTION
CONTROL BITS / SIGNALS
P3DIR.x
P3SEL.x
LCDS24
P3.1/UCB0SIMO/
UCB0SDA/S26
1 P3.x (I/O)
UCB0SIMO/UCB0SDA (see Notes 2 and 3)
I: 0, O: 1
0
0
x
1
0
S26
x
x
1
P3.2/UCB00SOMI/
UCB0SCL/S27
2 P3.x (I/O)
UCB0SOMI/UCB0SCL (see Notes 2 and 3)
I: 0, O: 1
0
0
x
1
0
S27
x
x
1
NOTES: 1. x: Don’t care
2. The pin direction is controlled by the USCI module.
3. In case the I2C functionality is selected the output drives only the logical 0 to V_SS level.
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