參數(shù)資料
型號: PC8240
廠商: Atmel Corp.
英文描述: Integrated Processor Family
中文描述: 綜合處理器系列
文件頁數(shù): 29/42頁
文件大?。?/td> 421K
代理商: PC8240
29
PC8240
2149A–HIREL–05/02
Figure 19.
EPIC Serial Interrupt Mode Output Timing Diagram
Figure 20.
EPIC Serial Interrupt Mode Input Timing Diagram
IEEE 1149.1 (JTAG) AC Timing
Specifications
Table 17 provides the JTAG AC timing specifications for the PC8240 while in the JTAG
operating mode.
At recommended operating conditions (see Table 3 on page 8) with GVdd = 3.3V
± 5%
and LVdd = 3.3V ± 5%
S_CLK
S_RST
VM
VM
VM
S_FRAME
sys_logic_clk3
VM
VM
VM
VM
4
3
5
4
6
S_CLK
S_INT
7
VM
Table 17.
JTAG AC Timing Specifications (Independent of PCI_SYNC_IN)
Num
Characteristics
(4)
Min
Max
Unit
Notes
TCK Frequency of Operation
0
25
MHz
1
TCK Cycle Time
40
ns
2
TCK Clock Pulse Width Measured at 1.5V
20
ns
3
TCK Rise and Fall Times
0
3
ns
4
TRST_ Setup Time to TCK Falling Edge
10
ns
(1)
5
TRST_ Assert Time
10
ns
6
Input Data Setup Time
5
ns
(2)
7
Input Data Hold Time
15
ns
(2)
8
TCK to Output Data Valid
0
30
ns
(3)
9
TCK to Output High Impedance
0
30
ns
(3)
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