參數(shù)資料
型號: SPAKD56366PV120
廠商: MOTOROLA INC
元件分類: 數(shù)字信號處理
英文描述: 24-BIT, 120 MHz, OTHER DSP, PQFP144
封裝: TQFP-144
文件頁數(shù): 69/147頁
文件大?。?/td> 2156K
代理商: SPAKD56366PV120
1-24
DSP56366 Advance Information
MOTOROLA
Signal/Connection Descriptions
Timer
TIMER
JTAG/OnCE INTERFACE
Table 1-14 Timer Signal
Signal Name
Type
State during
Reset
Signal Description
TIO0
Input or
Output
Input
Timer 0 Schmitt-Trigger Input/Output—When timer 0 functions as an external
event counter or in measurement mode, TIO0 is used as input. When timer 0
functions in watchdog, timer, or pulse modulation mode, TIO0 is used as output.
The default mode after reset is GPIO input. This can be changed to output or
configured as a timer input/output through the timer 0 control/status register
(TCSR0). If TIO0 is not being used, it is recommended to either define it as GPIO
output immediately at the beginning of operation or leave it defined as GPIO input
but connected to Vcc through a pull-up resistor in order to ensure a stable logic
level at this input.
This input is 5 V tolerant.
Table 1-15 JTAG/OnCE Interface
Signal
Name
Signal
Type
State
during
Reset
Signal Description
TCK
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
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
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.
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