參數(shù)資料
型號: TMS320F28335_1
廠商: Texas Instruments, Inc.
英文描述: Variable Capacitance Diode for TV Tuner VHF Tuning; Ratings VR (V): 32; Characteristics n: 12.0 min; Characteristics rs (ohm) max: 0.85; Characteristics C (pF) max: C2 = 32.2 to 37.5 C25 = 2.57 to 3.0; Characteristics CVR/CVR: 2/25; Cl: 2.777; Package: UFP
中文描述: 數(shù)字信號控制器(DSC)
文件頁數(shù): 159/166頁
文件大?。?/td> 1889K
代理商: TMS320F28335_1
www.ti.com
A
Bit 0
Bit(n-1)
(n-2)
(n-3)
(n-4)
Bit 0
Bit(n-1)
(n-2)
(n-3)
(n-4)
CLKX
FSX
DX
M30
M31
DR
M28
M24
M29
M25
LSB
MSB
M32
M33
Bit 0
Bit(n-1)
(n-2)
(n-3)
(n-4)
Bit 0
Bit(n-1)
(n-2)
(n-3)
(n-4)
CLKX
FSX
DX
DR
M35
M37
M40
M39
M38
M34
LSB
MSB
M41
M42
TMS320F28335, TMS320F28334, TMS320F28332
Digital Signal Controllers (DSCs)
SPRS439B–JUNE 2007–REVISED OCTOBER 2007
For all SPI slave modes, CLKX has to be minimum 8 CLKG cycles. Also CLKG should be LSPCLK/2 by
setting CLKSM = CLKGDV = 1. With maximum LSPCLK speed of 75 MHz, CLKX maximum frequency will
be LSPCLK/16 , that is 4.6875 MHz and P = 13.3 ns.
Figure 6-37. McBSP Timing as SPI Master or Slave: CLKSTP = 10b, CLKXP = 0
Table 6-60. McBSP as SPI Master or Slave Timing Requirements (CLKSTP = 11b, CLKXP = 0)
NO.
MASTER
MIN
30
1
SLAVE
MIN MAX
8P – 10
8P – 10
16P + 10
16P
UNIT
MAX
M39
M40
M41
M42
t
su(DRV-CKXH)
t
h(CKXH-DRV)
t
su(FXL-CKXH)
t
c(CKX)
Setup time, DR valid before CLKX high
Hold time, DR valid after CLKX high
Setup time, FSX low before CLKX high
Cycle time, CLKX
ns
ns
ns
ns
2P
(1)
(1)
2P = 1/CLKG
Table 6-61. McBSP as SPI Master or Slave Switching Characteristics (CLKSTP = 11b, CLKXP = 0)
NO.
PARAMETER
MASTER
MIN
P
2P
(1)
P + 6
SLAVE
MIN
UNIT
MAX
MAX
M34
M35
M37
t
h(CKXL-FXL)
t
d(FXL-CKXH)
t
dis(CKXL-DXHZ)
Hold time, FSX low after CLKX low
Delay time, FSX low to CLKX high
Disable time, DX high impedance following last data bit
from CLKX low
Delay time, FSX low to DX valid
ns
ns
ns
7P + 6
M38
t
d(FXL-DXV)
6
4P + 6
ns
(1)
2P = 1/CLKG
For all SPI slave modes, CLKX must be a minimum of 8 CLKG cycles. Also, CLKG should be LSPCLK/2
by setting CLKSM = CLKGDV = 1. With a maximum LSPCLK speed of 75 MHz, CLKX maximum
frequency is LSPCLK/16; that is, 4.6875 MHz and P =13.3 ns.
Figure 6-38. McBSP Timing as SPI Master or Slave: CLKSTP = 11b, CLKXP = 0
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Electrical Specifications
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