adsp-21478 Analog Devices, Inc., adsp-21478 Datasheet - Page 60

• Manufacturer Part Number: adsp-21478
• Description: Sharc Processor
• Manufacturer: Analog Devices, Inc.

ADSP-21478/ADSP-21479
JTAG Test Access Port and Emulation
Table 49. JTAG Test Access Port and Emulation
1
2
Parameter
Timing Requirements
t
t
t
t
t
t
Switching Characteristics
t
t
System Inputs = DATA15–0, CLK_CFG1–0, RESET, BOOT_CFG1–0, DAI_Px, DPI_Px, FLAG3–0, MLBCLK, MLBDAT, MLBSIG, SR_SCLK, SR_CLR, SR_SDI, and
System Outputs = DAI_Px, DPI_Px, ADDR23–0, AMI_RD, AMI_WR, FLAG3–0, SDRAS, SDCAS, SDWE, SDCKE, SDA10, SDDQM, SDCLK, MLBDAT, MLBSIG, MLBDO,
TCK
STAP
HTAP
SSYS
HSYS
TRSTW
DTDO
DSYS
SR_LAT.
MLBSO, SR_SDO, SR_LDO and EMU.
1
1
2
OUTPUTS
SYSTEM
SYSTEM
INPUTS
TMS
TDO
TCK
TDI
TCK Period
TDI, TMS Setup Before TCK High
TDI, TMS Hold After TCK High
System Inputs Setup Before TCK High
System Inputs Hold After TCK High
TRST Pulse Width
TDO Delay from TCK Low
System Outputs Delay After TCK Low
t
DTDO
t
TCK
Figure 48. IEEE 1149.1 JTAG Test Access Port
t
t
DSYS
SSYS
t
Rev. PrB | Page 60 of 70 | March 2010
STAP
t
HTAP
t
HSYS
Preliminary Technical Data
Min
t
5
6
7
18
4 × t
CK
CK
Max
7
t
CK
÷ 2 + 7
Unit
ns
ns
ns
ns
ns
ns
ns
ns