Table 3-12 SPI Timing
參數(shù)資料
型號(hào): DSP56F801FA80E
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 26/48頁(yè)
文件大?。?/td> 0K
描述: IC DSP 60MHZ 16KB FLASH 48-LQFP
標(biāo)準(zhǔn)包裝: 250
系列: 56F8xx
核心處理器: 56800
芯體尺寸: 16-位
速度: 80MHz
連通性: SCI,SPI
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 11
程序存儲(chǔ)器容量: 20KB(10K x 16)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 2K x 16
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 48-LQFP
包裝: 托盤(pán)
56F801 Technical Data, Rev. 17
32
Freescale Semiconductor
3.7 Serial Peripheral Interface (SPI) Timing
Table 3-12 SPI Timing1
Operating Conditions: V
SS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL 50pF
1.
Parameters listed are guaranteed by design.
Characteristic
Symbol
Min
Max
Unit
See Figure
Cycle time
Master
Slave
tC
50
25
ns
Figures 3-19, 3-20,
Enable lead time
Master
Slave
tELD
25
ns
Figure 3-22
Enable lag time
Master
Slave
tELG
100
ns
Figure 3-22
Clock (SCK) high time
Master
Slave
tCH
17.6
12.5
ns
Figures 3-19, 3-20,
Clock (SCK) low time
Master
Slave
tCL
24.1
25
ns
Figures 3-19, 3-20,
Data setup time required for inputs
Master
Slave
tDS
20
0
ns
Figures 3-19, 3-20,
Data hold time required for inputs
Master
Slave
tDH
0
2
ns
Figures 3-19, 3-20,
Access time (time to data active from
high-impedance state)
Slave
tA
4.8
15
ns
Figure 3-22
Disable time (hold time to high-impedance state)
Slave
tD
3.7
15.2
ns
Figure 3-22
Data Valid for outputs
Master
Slave (after enable edge)
tDV
4.5
20.4
ns
Figures 3-19, 3-20,
Data invalid
Master
Slave
tDI
0
ns
Figures 3-19, 3-20,
Rise time
Master
Slave
tR
11.5
10.0
ns
Figures 3-19, 3-20,
Fall time
Master
Slave
tF
9.7
9.0
ns
Figures 3-19, 3-20,
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