msp430f2121irge Microchip Technology Inc., msp430f2121irge Datasheet - Page 40

• Manufacturer Part Number: msp430f2121irge
• Description: Msp430
• Manufacturer: Microchip Technology Inc.

MSP430x21x1
MIXED SIGNAL MICROCONTROLLER
SLAS439C − SEPTEMBER 2004 − REVISED JULY 2006
Port P2 (P2.6) pin functions
† Default after reset (PUC/POR)
NOTES: 1. N/A: Not available or not applicable.
Port P2 (P2.7) pin functions
† Default after reset (PUC/POR)
NOTES: 1. N/A: Not available or not applicable.
40
P2.6/XIN/CA6
P2.6/XIN/CA6
P2.7/XOUT/CA7
P2.7/XOUT/CA7
PIN NAME (P2.X)
PIN NAME (P2.X)
PIN NAME (P2.X)
PIN NAME (P2.X)
2. X: Don’t care.
3. Setting the CAPD.x bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when applying
2. X: Don’t care.
3. Setting the CAPD.x bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when applying
4. If the pin XOUT/P2.7/CA7 is used as an input a current can flow until P2SEL.7 is cleared due to the oscillator output driver connection
analog signals. Selecting the CAx input pin to the comparator multiplexer with the P2CAx bits automatically disables the input buffer
for that pin, regardless of the state of the associated CAPDx bit.
analog signals. Selecting the CAx input pin to the comparator multiplexer with the P2CAx bits automatically disables the input buffer
for that pin, regardless of the state of the associated CAPD.x bit.
to this pin after reset.
X
X
X
X
6
6
6
6
P2.6 (I/O)
XIN†
CA6 (see Note 3)
P2.7 (I/O)
XOUT† (see Note 4)
CA7 (see Note 3)
POST OFFICE BOX 655303
FUNCTION
FUNCTION
FUNCTION
FUNCTION
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DALLAS, TEXAS 75265
P2DIR.x
P2DIR.x
I: 0; O: 1
I: 0; O: 1
X
X
X
X
CONTROL BITS / SIGNALS
CONTROL BITS / SIGNALS
P2SEL.x
P2SEL.x
0
1
X
0
1
X
CAPD.x
CAPD.x
0
0
1
0
0
1