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参数资料
型号： MPC8315VRAGDA
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 400 MHz, MICROPROCESSOR, PBGA620
封装： 29 X 29 MM, 2.23 MM HEIGHT, 1 MM PITCH, LEAD FREE, TEPBGAII-620
文件页数： 59/112页
文件大小： 1283K
代理商： MPC8315VRAGDA
MPC8315E PowerQUICC II Pro Processor Hardware Specifications, Rev. 0
50
Freescale Semiconductor
PCI
Figure 33 provides the AC test load for the I2C.
Figure 33. I2C AC Test Load
Figure 34 shows the AC timing diagram for the I2C bus.
Figure 34. I2C Bus AC Timing Diagram
14 PCI
This section describes the DC and AC electrical specifications for the PCI bus of the MPC8315E.
Noise margin at the HIGH level for each connected device (including hysteresis)
VNH
0.2
× NVDD
—
V
Notes:
1. 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, tI2DVKH symbolizes I
2C timing
(I2) with respect to the time data input signals (D) reach the valid state (V) relative to the tI2C clock reference (K) going to
the high (H) state or setup time. Also, tI2SXKL symbolizes I
2C timing (I2) for the time that the data with respect to the start
condition (S) went invalid (X) relative to the tI2C clock reference (K) going to the low (L) state or hold time. Also, tI2PVKH
symbolizes I2C timing (I2) for the time that the data with respect to the stop condition (P) reaching the valid state (V) relative
to the tI2C clock reference (K) going to the high (H) state or setup time. For rise and fall times, the latter convention is used
with the appropriate letter: R (rise) or F (fall).
2. MPC8315E provides a hold time of at least 300 ns for the SDA signal (referred to the VIHmin of the SCL signal) to bridge the
undefined region of the falling edge of SCL.
3. The maximum tI2DVKH has to be met only if the device does not stretch the LOW period (tI2CL) of the SCL signal.
4. MPC8315E does not follow the
I2C-BUS Specifications version 2.1 regarding the tI2CF AC parameter.
Table 48. I2C AC Electrical Specifications (continued)
All values refer to VIH (min) and VIL (max) levels (see Table 47)
Parameter
Symbol 1
Min
Max
Unit
Output
Z0 = 50 Ω
NVDD/2
RL = 50 Ω
Sr
S
SDA
SCL
tI2CF
tI2SXKL
tI2CL
tI2CH
tI2DXKL
tI2DVKH
tI2SXKL
tI2SVKH
tI2KHKL
tI2PVKH
tI2CR
tI2CF
PS
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