MSP430F2619S-HT_14 Datasheet, PDF (52/93 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2619S-HT
SLAS697D – MARCH 2010 – REVISED OCTOBER 2013
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USCI (SPI Slave Mode) – Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)⁽¹⁾ (see Figure 30
and Figure 31)
t_STE,LEAD
PARAMETER
STE lead time,
STE low to clock
TEST CONDITIONS
V_CC
2.2 V/3 V
MIN TYP MAX UNIT
50
ns
t_STE,LAG
STE lag time,
Last clock to STE high
2.2 V/3 V
10
ns
t_STE,ACC
STE access time,
STE low to SOMI data out
2.2 V/3 V
50
ns
t_STE,DIS
STE disable time,
STE high to SOMI high
impedance
2.2 V/3 V
50
ns
t_SU,SI
SIMO input data setup time
2.2 V
20
ns
3V
15
t_HD,SI
SIMO input data hold time
2.2 V
10
ns
3V
10
t_VALID,SO
SOMI output data valid time
UCLK edge to SOMI valid,
C_L = 20 pF
2.2 V
3V
75 110
ns
50
75
(1) f_UCxCLK = 1/2t_LO/HI with t_LO/HI ≥ max(t_{VALID,MO(USCI)} + t_SU,SI(Slave), t_SU,MI(USCI) + t_{VALID,SO(Slave)}).
For the slave parameters t_SU,SI(Slave) and t_{VALID,SO(Slave)}, see the SPI parameters of the attached slave.
1/f_UCxCLK
UCLK
CKPL = 0
CKPL = 1
t_LOW/HIGH t_LOW/HIGH
t_SU,MI
t_HD,MI
SCMI
SIMO
t_{VALID, MO}
Figure 28. SPI Master Mode, CKPH = 0
52
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