ADSP-BF531 / ADSP-BF532 / ADSP-BF533
JTAG Test and Emulation Port Timing
Table 37. JTAG Port Timing
V DDEXT = 1.8 V
V DDEXT = 2.5 V/3.3 V
Parameter
Min
Max
Min Max
Unit
Timing Requirements
t TCK
t STAP
t HTAP
t SSYS
t HSYS
t TRSTW
TCK Period
TDI, TMS Setup Before TCK High
TDI, TMS Hold After TCK High
System Inputs Setup Before TCK High 1
System Inputs Hold After TCK High 1
TRST Pulse Width 2 (Measured in TCK Cycles)
20
4
4
4
5
4
20
4
4
4
5
4
ns
ns
ns
ns
ns
TCK
Switching Characteristics
t DTDO
TDO Delay from TCK Low
10
10
ns
t DSYS
System Outputs Delay After TCK Low 3
0
12
0
12
ns
1
2
3
System Inputs = DATA15–0, ARDY, TMR2–0, PF15–0, PPI_CLK, RSCLK0–1, RFS0–1, DR0PRI, DR0SEC, TSCLK0–1, TFS0–1, DR1PRI, DR1SEC, MOSI, MISO, SCK, RX,
RESET, NMI, BMODE1–0, BR, PPI3–0.
50 MHz maximum.
System Outputs = DATA15–0, ADDR19–1, ABE1–0, AOE, ARE, AWE, AMS3–0, SRAS, SCAS, SWE, SCKE, CLKOUT, SA10, SMS, TMR2–0, PF15–0, RSCLK0–1, RFS0–1,
TSCLK0–1, TFS0–1, DT0PRI, DT0SEC, DT1PRI, DT1SEC, MOSI, MISO, SCK, TX, BG, BGH, PPI3–0.
t TCK
TCK
TMS
TDI
TDO
t DTDO
t STAP
t SSYS
t HTAP
t HSYS
SYSTEM
INPUTS
t DSYS
SYSTEM
OUTPUTS
Figure 32. JTAG Port Timing
Rev. I
|
Page 42 of 64 |
August 2013
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