參數資料
型號: SPAK56F826BU80
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 數字信號處理
英文描述: 16-BIT, 80 MHz, OTHER DSP, PQFP100
封裝: LQFP-100
文件頁數: 33/53頁
文件大小: 829K
代理商: SPAK56F826BU80
Quad Timer Timing
MOTOROLA
DSP56F826 Preliminary Technical Data
39
3.11 Quad Timer Timing
3.12 Serial Communication Interface (SCI) Timing
Table 19. Timer Timing1, 2
Operating Conditions: VSSIO=VSS = VSSA = 0V, VDDA =VDDIO=3.0–3.6V, VDD = 2.25–2.75V, TA = –40° to +85°C, CL ≤ 50 pF, fop = 80 MHz
1.
In the formulas listed, T = clock cycle. For 80MHz operation, T = 12.5 ns.
2.
Parameters listed are guaranteed by design.
Characteristic
Symbol
Typical Min
Typical Max
Unit
Timer input period
PIN
4T+6
ns
Timer input high/low period
PINHL
2T+3
ns
Timer output period
POUT
2T
ns
Timer output high/low period
POUTHL
1T
ns
Figure 28. Quad Timer Timing
Table 20. SCI Timing4
Operating Conditions: VSSIO=VSS = VSSA = 0V, VDDA =VDDIO=3.0–3.6V, VDD = 2.25–2.75V, TA = –40° to +85°C, CL ≤ 50 pF, fop = 80 MHz
Characteristic
Symbol
Typical Min
Typical Max
Unit
Baud Rate1
1.
fMAX is the frequency of operation of the system clock in MHz.
BR
(fMAX*2.5)/(80)
Mbps
RXD2 Pulse Width
2.
The RXD pin in SCI0 is named RXD0 and the RXD pin in SCI1 is named RXD1.
RXDPW
0.965/BR
1.04/BR
ns
TXD3 Pulse Width
3.
The TXD pin in SCI0 is named TXD0 and the TXD pin in SCI1 is named TXD1.
4.
Parameters listed are guaranteed by design.
TXDPW
0.965/BR
1.04/BR
ns
Timer Inputs
Timer Outputs
PIN
PINHL
POUT
POUTHL
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