Table 21-8. Signals by Signal Name (continued)
DescriptionBuffer Type
a
Pin TypePin Mux / Pin
Assignment
Pin NumberPin Name
UART module 1 receive. When in IrDA mode, this
signal has IrDA modulation.
TTLIPD0 (5)
PD2 (1)
PC6 (5)
PA0 (9)
PB0 (5)
PB4 (7)
G1
H2
M2
L3
E12
A6
U1Rx
UART module 1 transmit. When in IrDA mode, this
signal has IrDA modulation.
TTLOPD1 (5)
PD3 (1)
PC7 (5)
PA1 (9)
PB1 (5)
PB5 (7)
G2
H1
L2
M3
D12
B7
U1Tx
UART module 2 receive. When in IrDA mode, this
signal has IrDA modulation.
TTLIPD0 (4)
PG0 (1)
PB4 (4)
PD5 (9)
G1
K1
A6
B4
U2Rx
UART module 2 transmit. When in IrDA mode, this
signal has IrDA modulation.
TTLOPE4 (5)
PD1 (4)
PG1 (1)
PD6 (9)
B2
G2
K2
A3
U2Tx
Power source for the Hibernation module. It is
normally connected to the positive terminal of a
battery and serves as the battery
backup/Hibernation module power-source supply.
Power-fixedL12VBAT
Positive supply for I/O and some logic.Power-fixedK7
G12
K8
C10
K9
H10
G10
E10
D10
D11
G11
VDD
The positive supply for the analog circuits (ADC,
Analog Comparators, etc.). These are separated
from VDD to minimize the electrical noise contained
on VDD from affecting the analog functions. VDDA
pins must be supplied with a voltage that meets the
specification in Table 23-2 on page 981 , regardless
of system implementation.
Power-fixedC7
C6
VDDA
Positive supply for most of the logic function,
including the processor core and most peripherals.
The voltage on this pin is 1.3 V and is supplied by
the on-chip LDO. The VDDC pins should only be
connected to the LDOpin and an external capacitor
as specified in Table 23-6 on page 986 .
Power-fixedF3
D3
G3
C3
VDDC
This input provides a reference voltage used to
specify the input voltage at which the ADC converts
to a maximum value. In other words, the voltage
that is applied to VREFA is the voltage with which
an AINn signal is converted to 4095. The VREFA
input is limited to the range specified in Table
23-22 on page 993 .
AnalogIPB6A7VREFA
July 24, 2012966
Texas Instruments-Production Data
Signal Tables
OBSOLETE: TI has discontinued production of this device.