MSP43020X3 Datasheet, PDF (75/92 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

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MSP430F20x3
MSP430F20x2
MSP430F20x1
SLAS491H – AUGUST 2005 – REVISED AUGUST 2011
Table 29. Port P1 (P1.4 to P1.7) Pin Functions, MSP430F20x3
PIN NAME (P1.x)
P1.4/SMCLK/A2+/TCK
P1.5/TA0/SCLK/A2-/TMS
P1.6/TA1/SDO/SCL/
A3+/TDI
P1.7/SDI/SDA/A3-/
TDO/TDI
x
FUNCTION
P1.4⁽³⁾ input/output
N/A
4 SMCLK
A2+ ⁽⁴⁾
TCK ⁽⁵⁾
P1.5⁽³⁾ input/output
N/A
Timer_A2.TA0
5
SCLK
A2-^{(4) (6)}
TMS ⁽⁵⁾
P1.6⁽³⁾ input/output
Timer_A2.CCI1B
Timer_A2.TA1
6
SDO (SPI) / SCL (I2C)
A3+ ⁽⁴⁾
TDI ⁽⁵⁾
P1.7⁽³⁾ input/output
N/A
DVSS
7
SDI (SPI) / SDA (I2C)
A3-^{(4) (6)}
TDO/TDI ^{(5) (7)}
P1DIR.x
0/1
0
1
X
X
0/1
0
1
X
X
X
0/1
0
1
X
X
X
0/1
0
1
X
X
X
CONTROL BITS / SIGNALS⁽¹⁾⁽²⁾
P1SEL.x
USIP.x
SD16AE.x
0
N/A
0
1
N/A
0
1
N/A
0
X
N/A
1
X
N/A
X
0
0
0
1
0
0
1
0
0
X
1
0
X
X
1
X
X
X
0
0
0
1
0
0
1
0
0
X
1
0
X
X
1
X
X
X
0
0
0
1
0
0
1
0
0
X
1
0
X
X
1
X
X
X
INCHx
N/A
N/A
N/A
2
X
N/A
N/A
N/A
N/A
2
X
N/A
N/A
N/A
N/A
3
X
N/A
N/A
N/A
N/A
3
X
JTAG Mode
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
(1) X = Don't care
(2) N/A = Not available or not applicable
(3) Default after reset (PUC/POR)
(4) Setting the SD16AE.x bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when applying
analog signals.
(5) In JTAG mode the internal pullup/down resistors are disabled.
(6) With SD16AE.x = 0 the negative inputs are connected to VSS if the corresponding input is selected.
(7) Function controlled by JTAG
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