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參數(shù)資料
型號(hào)： LFM34INTPU1A
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 35/60頁(yè)
文件大小： 0K
描述： ADAPTER MPC5534 324-BGA
標(biāo)準(zhǔn)包裝： 1
模塊/板類(lèi)型： 適配器板
MPC5534 Microcontroller Data Sheet, Rev. 6
Electrical Characteristics
Freescale Semiconductor
40
8PCSS to PCSx time
tPASC
5
—5
—
5
—ns
9
Data setup time for inputs
Master (MTFE = 0)
Slave
Master (MTFE = 1, CPHA = 0)7
Master (MTFE = 1, CPHA = 1)
tSUI
20
2
–4
20
—
20
2
6
20
—
20
2
8
20
—
ns
10
Data hold time for inputs
Master (MTFE = 0)
Slave
Master (MTFE = 1, CPHA = 0)7
Master (MTFE = 1, CPHA = 1)
tHI
–4
7
45
–4
—
–4
7
25
–4
—
–4
7
21
–4
—
ns
11
Data valid (after SCK edge)
Master (MTFE = 0)
Slave
Master (MTFE = 1, CPHA = 0)
Master (MTFE = 1, CPHA = 1)
tSUO
—
5
25
45
5
—
5
25
5
—
5
25
21
5
ns
12
Data hold time for outputs
Master (MTFE = 0)
Slave
Master (MTFE = 1, CPHA = 0)
Master (MTFE = 1, CPHA = 1)
tHO
–5
5.5
8
–5
—
–5
5.5
4
–5
—
–5
5.5
3
–5
—
ns
1 All DSPI timing specifications use the fastest slew rate (SRC = 0b11) on pad type M or MH. DSPI signals using pad types of
S or SH have an additional delay based on the slew rate. DSPI timing is specified at VDDEH = 3.0–5.25 V, TA = TL to TH, and
CL = 50 pF with SRC = 0b11.
2
Speed is the nominal maximum frequency. Max speed is the maximum speed allowed including frequency modulation (FM).
42 MHz parts allow for 40 MHz system clock + 2% FM; 68 MHz parts allow for a 66 MHz system clock + 2% FM, and
82 MHz parts allow for 80 MHz system clock + 2% FM.
3 The minimum SCK cycle time restricts the baud rate selection for the given system clock rate.
These numbers are calculated based on two MPC55xx devices communicating over a DSPI link.
4 The actual minimum SCK cycle time is limited by pad performance.
5 The maximum value is programmable in DSPI_CTARx[PSSCK] and DSPI_CTARx[CSSCK].
6 The maximum value is programmable in DSPI_CTARx[PASC] and DSPI_CTARx[ASC].
7 This number is calculated using the SMPL_PT field in DSPI_MCR set to 0b10.
Table 26. DSPI Timing 1, 2 (continued)
Spec
Characteristic
Symbol
40 MHz
66 MHz
80 MHz
Unit
Min.
Max
Min.
Max
Min.
Max
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