TMS320F28335_1 Datasheet, PDF (161/166 Pages) Texas Instruments – Digital Signal Controllers (DSCs)

TMS320F28335, TMS320F28334, TMS320F28332
www.ti.com
Digital Signal Controllers (DSCs)
SPRS439B – JUNE 2007 – REVISED OCTOBER 2007
Table 6-65. McBSP as SPI Master or Slave Switching Characteristics (CLKSTP = 11b, CLKXP = 1)⁽¹⁾
NO.
PARAMETER
MASTER ⁽²⁾
SLAVE
UNIT
MIN MAX
MIN MAX
M53
M54
M56
t_h(CKXH-FXL)
t_d(FXL-CKXL)
t_{dis(CKXH-DXHZ)}
Hold time, FSX low after CLKX high
Delay time, FSX low to CLKX low
Disable time, DX high impedance following last data bit from
CLKX high
P
2P ⁽¹⁾
P+6
ns
ns
7P + 6
ns
M57 t_d(FXL-DXV)
Delay time, FSX low to DX valid
6
4P + 6
ns
(1) 2P = 1/CLKG
(2) C = CLKX low pulse width = P
D = CLKX high pulse width = P
CLKX
FSX
DX
DR
LSB
M60
MSB
M61
M53
M54
M56
Bit 0
Bit 0
M57
M58
Bit(n-1)
Bit(n-1)
M55
(n-2)
M59
(n-2)
(n-3)
(n-3)
(n-4)
(n-4)
Figure 6-40. McBSP Timing as SPI Master or Slave: CLKSTP = 11b, CLKXP = 1
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Electrical Specifications 161