Datasheet

TMS320C28346, TMS320C28345, TMS320C28344
TMS320C28343, TMS320C28342, TMS320C28341
www.ti.com SPRS516D –MARCH 2009–REVISED AUGUST 2012
Table 2-2. Signal Descriptions (continued)
ZHH ZFE
NAME DESCRIPTION
BALL # BALL #
GPIO8 General Purpose Input/Output 8 (I/O/Z)
EPWM5A Enhanced PWM5 output A and HRPWM channel (O)
G4 G2
CANTXB Enhanced CAN-B transmit (O)
ADCSOCAO ADC start-of-conversion A (O)
GPIO9 General purpose input/output 9 (I/O/Z)
EPWM5B Enhanced PWM5 output B (O)
G2 G3
SCITXDB SCI-B transmit data(O)
ECAP3 Enhanced capture input/output 3 (I/O)
GPIO10 General purpose input/output 10 (I/O/Z)
EPWM6A Enhanced PWM6 output A and HRPWM channel (O)
G3 H1
CANRXB Enhanced CAN-B receive (I)
ADCSOCBO ADC start-of-conversion B (O)
GPIO11 General purpose input/output 11 (I/O/Z)
EPWM6B Enhanced PWM6 output B (O)
H3 H2
SCIRXDB SCI-B receive data (I)
ECAP4 Enhanced CAP Input/Output 4 (I/O)
GPIO12 General purpose input/output 12 (I/O/Z)
TZ1 Trip Zone input 1 (I)
H2 H3
CANTXB Enhanced CAN-B transmit (O)
MDXB McBSP-B transmit serial data (O)
GPIO13 General purpose input/output 13 (I/O/Z)
TZ2 Trip Zone input 2 (I)
H4 J2
CANRXB Enhanced CAN-B receive (I)
MDRB McBSP-B receive serial data (I)
GPIO14 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
TZ3/XHOLD XINTCNF2[HOLD] = 1. If this is not done, the XINTF bus will go into high impedance anytime TZ3
H5 J3
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)
SCITXDB SCI-B Transmit (O)
MCLKXB McBSP-B transmit clock (I/O)
GPIO15 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
TZ4/XHOLDA
K2 K2 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/O)
SCIRXDB SCI-B receive (I)
MFSXB McBSP-B transmit frame synch (I/O)
GPIO16 General purpose input/output 16 (I/O/Z)
SPISIMOA SPI slave in, master out (I/O)
K4 L1
CANTXB Enhanced CAN-B transmit (O)
TZ5 Trip Zone input 5 (I)
GPIO17 General purpose input/output 17 (I/O/Z)
SPISOMIA SPI-A slave out, master in (I/O)
J5 L2
CANRXB Enhanced CAN-B receive (I)
TZ6 Trip zone input 6 (I)
GPIO18 General purpose input/output 18 (I/O/Z)
SPICLKA SPI-A clock input/output (I/O)
L1 M1
SCITXDB SCI-B transmit (O)
CANRXA Enhanced CAN-A receive (I)
GPIO19 General purpose input/output 19 (I/O/Z)
SPISTEA SPI-A slave transmit enable input/output (I/O)
P3 T4
SCIRXDB SCI-B receive (I)
CANTXA Enhanced CAN-A transmit (O)
Copyright © 2009–2012, Texas Instruments Incorporated Introduction 25
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