參數(shù)資料
型號(hào)： PC8240
廠商： Atmel Corp.
英文描述： Integrated Processor Family
中文描述： 綜合處理器系列
文件頁(yè)數(shù)： 30/42頁(yè)
文件大?。?/td> 421K
代理商： PC8240
30
PC8240
2149A–HIREL–05/02
Notes:
1. TRST is an asynchronous signal. The setup time is for test purposes only.
2. Non-test (other than TDI and TMS) signal input timing with respect to TCK.
3. Non-test (other than TDO) signal output timing with respect to TCK.
4. Timings are independent of the system clock (PCI_SYNC_IN).
Figure 21.
JTAG Clock Input Timing Diagram
Figure 22.
JTAG TRST Timing Diagram
Figure 23.
JTAG Boundary Scan Timing Diagram
10
TMS, TDI Data Setup Time
5
–
ns
11
TMS, TDI Data Hold Time
15
–
ns
12
TCK to TDO Data Valid
0
15
ns
13
TCK to TDO High Impedance
0
15
ns
Table 17.
JTAG AC Timing Specifications (Independent of PCI_SYNC_IN)
Num
Characteristics
(4)
Min
Max
Unit
Notes
TCK
2
2
1
VM
VM
VM
3
3
VM = Midpoint Voltage
4
5
TRST_
TCK
9
8
6
7
TCK
DATA INPUTS
INPUT VALID DATA
OUTPUT VALID DATA
DATA OUTPUTS
DATA OUTPUTS
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