
JTAG/OnCE Interface
DSP56364 24-Bit Digital Signal Processor Users Manual, Rev. 2
Freescale Semiconductor 2-13
2.9 JTAG/OnCE Interface
SDO1 Output GPIO
disconnected
Serial Data Output 1—SDO1 is used to transmit data from the TX1 serial
transmit shift register.
PC10 Input, output, or
disconnected
Port C 10—When the ESAI is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
SDO0 Output GPIO
disconnected
Serial Data Output 0—SDO0 is used to transmit data from the TX0 serial
transmit shift register.
PC11 Input, output, or
disconnected
Port C 11—When the ESAI is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
Table 2-11 JTAG/OnCE Interface
Signal
Name
Signal
Type
State
during
Reset
Signal Description
TCK Input Input Test Clock—TCK is a test clock input signal used to synchronize the JTAG test
logic. It has an internal pull-up resistor.
This input is 5 V tolerant.
TDI Input Input Test Data Input—TDI is a test data serial input signal used for test instructions and
data. TDI is sampled on the rising edge of TCK and has an internal pull-up resistor.
This input is 5 V tolerant.
TDO Output Tri-stated Test Data Output—TDO is a test data serial output signal used for test instructions
and data. TDO is tri-statable and is actively driven in the shift-IR and shift-DR
controller states. TDO changes on the falling edge of TCK.
TMS Input Input Test Mode Select—TMS is an input signal used to sequence the test controller’s
state machine. TMS is sampled on the rising edge of TCK and has an internal
pull-up resistor.
This input is 5 V tolerant.
Table 2-10 Enhanced Serial Audio Interface Signals (continued)
Signal
Name
Signal Type
State during
Reset
Signal Description
Komentarze do niniejszej Instrukcji