參數(shù)資料
型號: MPC8378E-MDS-PB
廠商: Freescale Semiconductor
文件頁數(shù): 105/128頁
文件大小: 0K
描述: BOARD PROCESSOR FOR MDS S
標準包裝: 1
類型: MPU
適用于相關(guān)產(chǎn)品: MPC8378
所含物品:
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
78
Freescale Semiconductor
This figure provides the AC test load for the SPI.
Figure 51. SPI AC Test Load
These figures represent the AC timing from Table 66. 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.
This figure shows the SPI timing in slave mode (external clock).
Figure 52. SPI AC Timing in Slave Mode (External Clock) Diagram
SPI inputs—Slave mode (external clock) input hold time
tNEIXKH
2—
ns
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, tNIKHOV symbolizes the internal
timing (NI) for the time SPICLK clock reference (K) goes to the high state (H) until outputs (O) are invalid (X).
2. Output specifications are measured from the 50% level of the rising edge of CLKIN to the 50% level of the signal. Timings
are measured at the pin. The maximum SPICLK input frequency is 66.666 MHz.
Table 66. SPI AC Timing Specifications (continued)
Parameter
Symbol1
Min
Max
Unit
Output
Z0 = 50 Ω
OVDD/2
RL = 50 Ω
SPICLK (input)
tNEIXKH
tNEIVKH
tNEKHOV
Input Signals:
SPIMOSI
(See Note)
Output Signals:
SPIMISO
(See Note)
Note: The clock edge is selectable on SPI.
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