参数资料
型号: MCF51QF32VHS
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: FLASH, 50 MHz, MICROCONTROLLER, QCC44
封装: 5 X 5 MM, QFN-44
文件页数: 42/72页
文件大小: 1031K
代理商: MCF51QF32VHS
Table 34. SPI master mode timing (continued)
Num.
Symbol
Description
Min.
Max.
Unit
Comment
6
tSU
Data setup time (inputs)
21
ns
7
tHI
Data hold time (inputs)
0
ns
8
tv
Data valid (after SPSCK edge)
25
ns
9
tHO
Data hold time (outputs)
0
ns
10
tRI
Rise time input
tBUS - 25
ns
tFI
Fall time input
11
tRO
Rise time output
25
ns
tFO
Fall time output
(OUTPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
SS1
(OUTPUT)
2
8
6
7
MSB IN2
BIT 6 . . . 1
LSB IN
MSB OUT2
LSB OUT
BIT 6 . . . 1
9
5
3
(CPOL 0)
(CPOL 1)
4
11
10
SPSCK
=
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
1. If configured as an output.
Figure 17. SPI master mode timing (CPHA=0)
Communication interfaces
MCF51JF128 Advance Information Data Sheet, Rev. 3, 08/2011.
Freescale Semiconductor, Inc.
Preliminary
47
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