参数资料
型号: MPC8309VMADDCA
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 266 MHz, RISC PROCESSOR, PBGA489
封装: 19 X 19 MM, 1.61 MM HEIGHT, 0.80 MM PITCH, LEAD FREE, PLASTIC, MAPBGA-489
文件页数: 25/81页
文件大小: 484K
代理商: MPC8309VMADDCA
MPC8309 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 1
Freescale Semiconductor
31
HDLC
9.2
TDM/SI AC Timing Specifications
The following table provides the TDM/SI input and output AC timing specifications.
The following figure provides the AC test load for the TDM/SI.
Figure 20. TDM/SI AC Test Load
The following figure represents the AC timing from Table 29. Note that although the specifications
generally reference the rising edge of the clock, these AC timing diagrams also apply when the falling edge
is the active edge.
Figure 21. TDM/SI AC Timing (External Clock) Diagram
10 HDLC
This section describes the DC and AC electrical specifications for the high level data link control (HDLC),
of the MPC8309.
Table 29. TDM/SI AC Timing Specifications1
Characteristic
Symbol2
Min
Max
Unit
TDM/SI outputs—External clock delay
tSEKHOV
214
ns
TDM/SI outputs—External clock High Impedance
tSEKHOX
210
ns
TDM/SI inputs—External clock input setup time
tSEIVKH
5—
ns
TDM/SI inputs—External clock input hold time
tSEIXKH
2—
ns
Notes:
1. Output specifications are measured from the 50% level of the rising edge of QE_CLK_IN to the 50% level of the signal.
Timings are measured at the pin.
2. The symbols used for timing specifications 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, tSEKHOX symbolizes the TDM/SI
outputs external timing (SE) for the time tTDM/SI memory clock reference (K) goes from the high state (H) until outputs (O)
are invalid (X).
Output
Z0 = 50
OVDD/2
RL = 50
TDM/SICLK (Input)
tSEIXKH
tSEIVKH
tSEKHOV
Input Signals:
TDM/SI
(See Note)
Output Signals:
TDM/SI
(See Note)
Note:
The clock edge is selectable on TDM/SI.
tSEKHOX
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