MSP430F6438, MSP430F6436, MSP430F6435, MSP430F6433
SLAS720D – AUGUST 2010 – REVISED DECEMBER 2015
Table 4-1. Signal Descriptions (continued)
TERMINAL
NO.
I/O
(1)
DESCRIPTION
NAME
PZ
ZQW
NC
78
B10
No connect
General-purpose digital I/O, controlled by PU control register. Port U is supplied by
PU.1
79
A11
I/O
the LDOO rail.
LDOI
80
A10
LDO input
LDOO
81
A9
LDO output
NC
82
B9
No connect
AVSS3
83
A8
Analog ground supply
General-purpose digital I/O
P7.2/XT2IN
84
B8
I/O
Input terminal for crystal oscillator XT2
General-purpose digital I/O
P7.3/XT2OUT
85
B7
I/O
Output terminal of crystal oscillator XT2
Capacitor for backup subsystem. Do not load this pin externally. For capacitor
VBAK
86
A7
values, see C
BAK
in
Recommended Operating Conditions
Backup or secondary supply voltage. If backup voltage is not supplied, connect to
VBAT
87
D8
DVCC externally.
General-purpose digital I/O
P5.7/RTCCLK
88
D7
I/O
RTCCLK output
DVCC3
89
A6
Digital power supply
DVSS3
90
A5
Digital ground supply
Test mode pin; selects digital I/O on JTAG pins
TEST/SBWTCK
91
B6
I
Spy-Bi-Wire input clock
General-purpose digital I/O
PJ.0/TDO
92
B5
I/O
Test data output port
General-purpose digital I/O
PJ.1/TDI/TCLK
93
A4
I/O
Test data input or test clock input
General-purpose digital I/O
PJ.2/TMS
94
E7
I/O
Test mode select
General-purpose digital I/O
PJ.3/TCK
95
D6
I/O
Test clock
Reset input (active low)
(3)
RST/NMI/SBWTDIO
96
A3
I/O
Nonmaskable interrupt input
Spy-Bi-Wire data input/output
General-purpose digital I/O
P6.0/CB0/A0
97
B4
I/O
Comparator_B input CB0
Analog input A0 – ADC
General-purpose digital I/O
P6.1/CB1/A1
98
B3
I/O
Comparator_B input CB1
Analog input A1 – ADC
General-purpose digital I/O
P6.2/CB2/A2
99
A2
I/O
Comparator_B input CB2
Analog input A2 – ADC
(3)
When this pin is configured as reset, the internal pullup resistor is enabled by default.
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Terminal Configuration and Functions
15
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