SM320F28335PTPMEP Datasheet, PDF (26/167 Pages) Texas Instruments – Digital Signal Controller (DSC)

SM320F28335-EP
SPRS581D – JUNE 2009 – REVISED MAY 2012
www.ti.com
NAME
GPIO11
EPWM6B
SCIRXDB
ECAP4
GPIO12
TZ1
CANTXB
MDXB
GPIO13
TZ2
CANRXB
MDRB
GPIO14
TZ3/XHOLD
SCITXDB
MCLKXB
GPIO15
TZ4/XHOLDA
SCIRXDB
MFSXB
GPIO16
SPISIMOA
CANTXB
TZ5
GPIO17
SPISOMIA
CANRXB
TZ6
GPIO18
SPICLKA
SCITXDB
CANRXA
GPIO19
SPISTEA
SCIRXDB
CANTXA
GPIO20
EQEP1A
MDXA
CANTXB
GPIO21
EQEP1B
MDRA
CANRXB
Table 2-2. Signal Descriptions (continued)
PIN NO.
PGF/P
TP
PIN #
GHH
BALL #
GJZ
BALL #
20
G2
G3
21
G3
H1
24
H3
H2
25
H2
H3
26
H4
J1
27
H5
J2
28
J1
J3
62
L6
N8
63
K7
M8
64
L7
P9
65
P7
N9
DESCRIPTION ⁽¹⁾
General purpose input/output 11 (I/O/Z)
Enhanced PWM6 output B (O)
SCI-B receive data (I)
Enhanced CAP Input/Output 4 (I/O)
General purpose input/output 12 (I/O/Z)
Trip Zone input 1 (I)
Enhanced CAN-B transmit (O)
McBSP-B transmit serial data (O)
General purpose input/output 13 (I/O/Z)
Trip Zone input 2 (I)
Enhanced CAN-B receive (I)
McBSP-B receive serial data (I)
General purpose input/output 14 (I/O/Z)
Trip Zone input 3/External Hold Request. XHOLD, when active (low), requests the external
interface (XINTF) to release the external bus and place all buses and strobes into a high-
impedance state. To prevent this from happening when TZ3 signal goes active, disable this
function by writing XINTCNF2[HOLD] = 1. If this is not done, the XINTF bus will go into
high impedance anytime TZ3 goes low. On the ePWM side, TZn signals are ignored by
default, unless they are enabled by the code. The XINTF will release the bus when any
current access is complete and there are no pending accesses on the XINTF. (I)
SCI-B Transmit (I)
McBSP-B transmit clock (I/O)
General purpose input/output 15 (I/O/Z)
Trip Zone input 4/External Hold Acknowledge. The pin function for this option is based on
the direction chosen in the GPADIR register. If the pin is configured as an input, then TZ4
function is chosen. If the pin is configured as an output, then XHOLDA function is chosen.
XHOLDA is driven active (low) when the XINTF has granted an XHOLD request. All XINTF
buses and strobe signals will be in a high-impedance state. XHOLDA is released when the
XHOLD signal is released. External devices should only drive the external bus when
XHOLDA is active (low). (I/0)
SCI-B receive (I)
McBSP-B transmit frame synch (I/O)
General purpose input/output 16 (I/O/Z)
SPI slave in, master out (I/O)
Enhanced CAN-B transmit (O)
Trip Zone input 5 (I)
General purpose input/output 17 (I/O/Z)
SPI-A slave out, master in (I/O)
Enhanced CAN-B receive (I)
Trip zone input 6 (I)
General purpose input/output 18 (I/O/Z)
SPI-A clock input/output (I/O)
SCI-B transmit (O)
Enhanced CAN-A receive (I)
General purpose input/output 19 (I/O/Z)
SPI-A slave transmit enable input/output (I/O)
SCI-B receive (I)
Enhanced CAN-A transmit (O)
General purpose input/output 20 (I/O/Z)
Enhanced QEP1 input A (I)
McBSP-A transmit serial data (O)
Enhanced CAN-B transmit (O)
General purpose input/output 21 (I/O/Z)
Enhanced QEP1 input B (I)
McBSP-A receive serial data (I)
Enhanced CAN-B receive (I)
26
Introduction
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