参数资料
型号: MPC8308-KIT
厂商: Freescale Semiconductor
文件页数: 46/83页
文件大小: 0K
描述: KIT EVALUATION FOR MPC830X
标准包装: 1
系列: PowerQUICC II™ PRO
类型: MPU
适用于相关产品: MPC8308
所含物品: 板,线缆,CD,电源
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 3
50
Freescale Semiconductor
JTAG
14 JTAG
This section describes the DC and AC electrical specifications for the IEEE Std 1149.1 (JTAG)
interface.
14.1
JTAG DC Electrical Characteristics
This table provides the DC electrical characteristics for the IEEE 1149.1 (JTAG) interface.
14.2
JTAG AC Timing Specifications
This section describes the AC electrical specifications for the IEEE 1149.1 (JTAG) interface.
This table provides the JTAG AC timing specifications as defined in Figure 41 through Figure 44.
Table 41. JTAG Interface DC Electrical Characteristics
Characteristic
Symbol
Condition
Min
Max
Unit
Input high voltage
VIH
—2.1
NVDD +0.3
V
Input low voltage
VIL
—–0.3
0.8
V
Input current
IIN
—±5
A
Output high voltage
VOH
IOH = –8.0 mA
2.4
V
Output low voltage
VOL
IOL = 8.0 mA
0.5
V
Output low voltage
VOL
IOL = 3.2 mA
0.4
V
Table 42. JTAG AC Timing Specifications (Independent of SYS_CLK_IN) 1
At recommended operating conditions (see Table 2).
Parameter
Symbol2
Min
Max
Unit
Note
JTAG external clock frequency of operation
fJTG
033.3
MHz
JTAG external clock cycle time
t JTG
30
ns
JTAG external clock pulse width measured at 1.4 V
tJTKHKL
15
ns
JTAG external clock rise and fall times
tJTGR & tJTGF
02
ns
TRST assert time
tTRST
25
ns
3
Input setup times:
Boundary-scan data
TMS, TDI
tJTDVKH
tJTIVKH
4
ns
4
Input hold times:
Boundary-scan data
TMS, TDI
tJTDXKH
tJTIXKH
10
ns
4
Valid times:
Boundary-scan data
TDO
tJTKLDV
tJTKLOV
2
11
ns
5
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