參數(shù)資料
型號(hào): MCF52277CVM166
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 166.67 MHz, RISC PROCESSOR, PBGA196
封裝: 15 X 15 MM, PLASTIC, ROHS COMPLIANT, MAPBGA-196
文件頁(yè)數(shù): 27/42頁(yè)
文件大?。?/td> 1632K
代理商: MCF52277CVM166
Electrical Characteristics
MCF5227x ColdFire Microprocessor Data Sheet, Rev. 4
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
33
S5
SSI_BCLK to SSI_FS output valid
10
ns
S6
SSI_BCLK to SSI_FS output invalid
0
ns
S7
SSI_BCLK to SSI_TXD valid
10
ns
S8
SSI_BCLK to SSI_TXD invalid / high impedence
0
ns
S9
SSI_RXD / SSI_FS input setup before SSI_BCLK
10
ns
S10
SSI_RXD / SSI_FS input hold after SSI_BCLK
0
ns
1 All timings specified with a capactive load of 25pF.
2 SSI_MCLK can be generated from SSI_CLKIN or a divided version of the internal system clock (SYSCLK).
3 SSI_BCLK can be derived from SSI_CLKIN or a divided version of SYSCLK. If the SYSCLK is used, the minimum
divider is 6. If the SSI_CLKIN input is used, the programmable dividers must be set to ensure that SSI_BCLK does
not exceed 4 x fSYS.
Table 25. SSI Timing—Slave Modes1
1 All timings specified with a capactive load of 25 pF.
Num
Characteristic
Symbol
Min
Max
Unit
Notes
S11
SSI_BCLK cycle time
tBCLK
4
× t
SYS
—ns
S12
SSI_BCLK pulse width high / low
45%
55%
tBCLK
S13
SSI_FS input setup before SSI_BCLK
10
ns
S14
SSI_FS input hold after SSI_BCLK
2
ns
S15
SSI_BCLK to SSI_TXD / SSI_FS output valid
10
ns
S16
SSI_BCLK to SSI_TXD / SSI_FS output invalid / high
impedence
0—
ns
S17
SSI_RXD setup before SSI_BCLK
10
ns
S18
SSI_RXD hold after SSI_BCLK
2
ns
Table 24. SSI Timing—Master Modes1 (continued)
Num
Characteristic
Symbol
Min
Max
Unit
Notes
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