参数资料
型号: MPC8535ECVTAQG
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 1000 MHz, MICROPROCESSOR, PBGA783
封装: 29 X 29 MM, 2.80 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, FCBGA-783
文件页数: 102/126页
文件大小: 2861K
代理商: MPC8535ECVTAQG
JTAG
MPC8535E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 3
Freescale Semiconductor
77
2.15.2
JTAG AC Electrical Specifications
This section describes the AC electrical specifications for the IEEE 1149.1 (JTAG) interface of the MPC8535E.
Table 58 provides the JTAG AC timing specifications as defined in Figure 45 through Figure 48.
Input current
(VIN
1 = 0 V or V
IN = VDD)
IIN
—±5
μA
High-level output voltage
(OVDD = min, IOH = -2 mA)
VOH
2.4
V
Low-level output voltage
(OVDD = min, IOL = 2 mA)
VOL
—0.4
V
Notes:
1. Note that the symbol VIN, in this case, represents the OVIN.
Table 58. JTAG AC Timing Specifications (Independent of SYSCLK)
At recommended operating conditions (see Table 3).
Parameter
Symbol 1
Min
Max
Unit
Notes
JTAG external clock frequency of operation
fJTG
0
33.3
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
2
Input setup times:
tJTDVKH
4—
ns
Input hold times:
tJTDXKH
10
ns
Output Valid times:
tJTKLDV
—10
ns
3
Output hold times:
tJTKLDX
0—
ns
3
Notes:
1. The symbols used for timing specifications herein follow the pattern of t(first two letters of functional block)(signal)(state) (reference)(state)
for inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tJTDVKH symbolizes JTAG
device timing (JT) with respect to the time data input signals (D) reaching the valid state (V) relative to the tJTG clock reference
(K) going to the high (H) state or setup time. Also, tJTDXKH symbolizes JTAG timing (JT) with respect to the time data input
signals (D) went invalid (X) relative to the tJTG clock reference (K) going to the high (H) state. Note that, in general, the clock
reference symbol representation is based on three letters representing the clock of a particular functional. For rise and fall
times, the latter convention is used with the appropriate letter: R (rise) or F (fall).
2. TRST is an asynchronous level sensitive signal. The setup time is for test purposes only.
3.) The output timings are measured at the pins. All output timings assume a purely resistive 50-
Ω load. Time-of-flight delays
must be added for trace lengths, vias, and connectors in the system.
Table 57. JTAG DC Electrical Characteristics (continued)
Parameter
Symbol 1
Min
Max
Unit
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