參數(shù)資料
型號(hào): 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(hào)控制器(DSC)
文件頁數(shù): 160/166頁
文件大?。?/td> 1889K
代理商: TMS320F28335_1
www.ti.com
A
M51
M50
M47
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
M44
M48
M49
M43
LSB
MSB
M52
TMS320F28335, TMS320F28334, TMS320F28332
Digital Signal Controllers (DSCs)
SPRS439B–JUNE 2007–REVISED OCTOBER 2007
Table 6-62. McBSP as SPI Master or Slave Timing Requirements (CLKSTP = 10b, CLKXP = 1)
NO.
MASTER
MIN
30
1
SLAVE
MIN
8P –10
8P –10
8P + 10
16P
MAX
MAX
UNIT
ns
ns
ns
ns
M49
M50
M51
M52
t
su(DRV-CKXH)
t
h(CKXH-DRV)
t
su(FXL-CKXL)
t
c(CKX)
Setup time, DR valid before CLKX high
Hold time, DR valid after CLKX high
Setup time, FSX low before CLKX low
Cycle time, CLKX
2P
(1)
(1)
2P = 1/CLKG
Table 6-63. McBSP as SPI Master or Slave Switching Characteristics (CLKSTP = 10b, CLKXP = 1)
NO.
PARAMETER
MASTER
MIN
2P
(1)
P
6
SLAVE
MIN
MAX
MAX
UNIT
ns
ns
ns
M43
M44
M47
t
h(CKXH-FXL)
t
d(FXL-CKXL)
t
dis(FXH-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
FSX high
Delay time, FSX low to DX valid
6P + 6
M48
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 maximum LSPCLK speed of 75 MHz, CLKX maximum frequency
will be LSPCLK/16; that is, 4.6875 MHz and P = 13.3 ns.
Figure 6-39. McBSP Timing as SPI Master or Slave: CLKSTP = 10b, CLKXP = 1
Table 6-64. McBSP as SPI Master or Slave Timing Requirements (CLKSTP = 11b, CLKXP = 1)
NO.
MASTER
MIN
30
1
SLAVE
MIN
8P – 10
8P – 10
16P + 10
16P
UNIT
MAX
MAX
M58
M59
M60
M61
t
su(DRV-CKXL)
t
h(CKXL-DRV)
t
su(FXL-CKXL)
t
c(CKX)
Setup time, DR valid before CLKX low
Hold time, DR valid after CLKX low
Setup time, FSX low before CLKX low
Cycle time, CLKX
ns
ns
ns
ns
2P
(1)
(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 maximum LSPCLK speed of 75 MHz, CLKX maximum frequency
is LSPCLK/16 , that is 4.6875 MHz and P = 13.3 ns.
Electrical Specifications
160
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