Bus
Keeper
EN
Direction
0: Input
1: Output
P 3SEL .x
1
0
P3DIR .x
P3IN .x
DVSS
DVSS
Pad Logic
DVSS
D
EN
Module X IN
1
0
Module X OUT
P3OUT .x
Note: x = 0,1,2,3
P 3.0/UCB 0STE
P 3.1/UCB 0SIMO /UCB 0SDA
P 3.2/UCB 0SOMI /UCB 0SCL
P 3.3/UCB 0CLK
MSP430FG4619, MSP430FG4618, MSP430FG4617, MSP430FG4616
MSP430CG4619, MSP430CG4618, MSP430CG4617, MSP430CG4616
www.ti.com
SLAS508J – APRIL 2006 – REVISED JUNE 2015
6.10.5 Port P3, P3.0 to P3.3, Input/Output With Schmitt Trigger
Table 6-15. Port P3 (P3.0 to P3.3) Pin Functions
CONTROL BITS OR
SIGNALS
(1)
PIN NAME (P3.x)
x
FUNCTION
P3DIR.x
P3SEL.x
P3.0/UCB0STE
0
P3.0 (I/O)
I: 0; O: 1
0
UCB0STE
(2)
X
1
P3.1/UCB0SIMO/UCB0SDA
1
P3.1 (I/O)
I: 0; O: 1
0
UCB0SIMO/UCB0SDA
(2) (3)
X
1
P3.2/UCB0SOMI/UCB0SCL
2
P3.2 (I/O)
I: 0; O: 1
0
UCB0SOMI/UCB0SCL
(2) (3)
X
1
P3.3/UCB0CLK
3
P3.3 (I/O)
I: 0; O: 1
0
UCB0CLK
(2)
X
1
(1)
X = don't care
(2)
The pin direction is controlled by the USCI module.
(3)
If the I
2
C functionality is selected the output drives only the logical 0 to V
SS
level.
Copyright © 2006–2015, Texas Instruments Incorporated
Detailed Description
71
Submit Documentation Feedback
Product Folder Links:
MSP430FG4619 MSP430FG4618 MSP430FG4617 MSP430FG4616 MSP430CG4619
MSP430CG4618 MSP430CG4617 MSP430CG4616