Texas Instruments Digital Signal Processor SM320F2812-HT User Manual
Page 24
SGUS062B
–
JUNE 2009
–
REVISED JUNE 2011
Signal Descriptions (Continued)
(continued)
PIN NO.
PERIPHERAL
DIE PAD
DIE PAD
GPIO
DIE PAD NO.
I/O/Z
(2)
PU/PD
(3)
DESCRIPTION
172-PIN
SIGNAL
X-CENTER
Y-CENTER
HFG
GPIOF OR CAN SIGNALS
GPIO or eCAN
GPIOF6
CANTXA (O)
85
99
5361.5
4758.0
I/O/Z
PU
transmit data
GPIO or eCAN
GPIOF7
CANRXA (I)
87
101
5192.7
5057.5
I/O/Z
PU
receive data
GPIOF OR McBSP SIGNALS
GPIO or transmit
GPIOF8
MCLKXA (I/O)
27
34
3461.4
42.6
I/O/Z
PU
clock
GPIO or receive
GPIOF9
MCLKRA (I/O)
24
31
3146.8
42.6
I/O/Z
PU
clock
GPIO or transmit
GPIOF10
MFSXA (I/O)
25
32
3242.2
42.6
I/O/Z
PU
frame synch
GPIO or receive
GPIOF11
MFSRA (I/O)
28
35
3556.7
42.6
I/O/Z
PU
frame synch
GPIO or transmitted
GPIOF12
MDXA (O)
21
28
2832.3
42.6
I/O/Z
–
serial data
GPIO or received
GPIOF13
MDRA (I)
19
26
2613.0
42.6
I/O/Z
PU
serial data
GPIOF OR XF CPU OUTPUT SIGNAL
This pin has three
functions:
1. XF
–
General-purpose
output pin.
2. XPLLDIS
–
This
pin is sampled
during reset to check
if the PLL needs to
GPIOF14
XF_XPLLDIS (O)
137
153
42.6
4153.3
I/O/Z
PU
be disabled. The
PLL will be disabled
if this pin is sensed
low. HALT and
STANDBY modes
cannot be used
when the PLL is
disabled.
3. GPIO
–
GPIO
function
GPIOG OR SCI-B SIGNALS
GPIO or SCI
GPIOG4
SCITXDB (O)
88
102
5098.0
5057.5
I/O/Z
–
asynchronous serial
port transmit data
GPIO or SCI
GPIOG5
SCIRXDB (I)
89
103
5003.3
5057.5
I/O/Z
–
asynchronous serial
port receive data
xxx
NOTE
Other than the power supply pins, no pin should be driven before the 3.3-V rail has reached
recommended operating conditions.
24
Introduction
Copyright
©
2009
–
2011, Texas Instruments Incorporated
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