MSP430F530X_12 Datasheet, PDF (75/100 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F530x, MSP430F5310
www.ti.com
SLAS677C – SEPTEMBER 2010 – REVISED SEPTEMBER 2012
Port P5, P5.0 and P5.1, Input/Output With Schmitt Trigger
to/from Reference
Pad Logic
to ADC10
INCHx = x
P5REN.x
P5DIR.x
0
1
DV_SS
0
DV_CC
1
1
P5OUT.x
From module
P5SEL.x
P5IN.x
To module
0
1
EN
D
P5DS.x
0: Low drive
1: High drive
Bus
Keeper
P5.0/(A8/VeREF+)
P5.1/(A9/VeREF–)
PIN NAME (P5.x)
P5.0/A8/VeREF+ ⁽²⁾
P5.1/A9/VeREF– ⁽⁵⁾
Table 50. Port P5 (P5.0 and P5.1) Pin Functions
x
0 P5.0 (I/O)⁽³⁾
A8/VeREF+ ⁽⁴⁾
1 P5.1 (I/O)⁽³⁾
A9/VeREF– ⁽⁶⁾
FUNCTION
CONTROL BITS AND SIGNALS⁽¹⁾
P5DIR.x
P5SEL.x
I: 0; O: 1
0
X
1
I: 0; O: 1
0
X
1
(1) X = Don't care
(2) VeREF+ available on devices with ADC10_A.
(3) Default condition
(4) Setting the P5SEL.0 bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when applying
analog signals. An external voltage can be applied to VeREF+ and used as the reference for the ADC10_A when available.
(5) VeREF- available on devices with ADC10_A.
(6) Setting the P5SEL.1 bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when applying
analog signals. An external voltage can be applied to VeREF- and used as the reference for the ADC10_A when available.
Copyright © 2010–2012, Texas Instruments Incorporated
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