参数资料
型号: MCF51QM32VFM
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, QCC32
封装: 5 X 5 MM, QFN-32
文件页数: 10/72页
文件大小: 1031K
代理商: MCF51QM32VFM
Table 10. EGPIO General Control Timing (continued)
Symbol
Description
Min.
Max.
Unit
GPIO pin interrupt pulse width (digital glitch filter disabled,
analog filter enabled)
Asynchronous path2
100
ns
GPIO pin interrupt pulse width (digital glitch filter disabled,
analog filter disabled)
Asynchronous path2
50
ns
External reset pulse width (digital glitch filter disabled)
100
ns
Mode select (MS) hold time after reset deassertion
2
Bus
clock
cycles
1. The greater synchronous and asynchronous timing must be met.
2. This is the shortest pulse that is guaranteed to be recognized.
G2
G1
G4
G3
Bus clock
Data outputs
Data inputs
Figure 3. EGPIO timing diagram
The following general purpose specifications apply to all signals configured for RGPIO,
FTM, and UART. The conditions are 25 pf load, VDD = 3.6 V to 1.71 V, and full
temperature range. The GPIO are set for high drive, no slew rate control, and no input
filter, digital or analog, unless otherwise specified.
Table 11. RGPIO General Control Timing
Symbol
Description
Min.
Max.
Unit
R1
CPUCLK from CLK_OUT pin high to GPIO output valid
16
ns
R2
CPUCLK from CLK_OUT pin high to GPIO output invalid
(output hold)
1
ns
R3
GPIO input valid to bus clock high
17
ns
R4
CPUCLK from CLK_OUT pin high to GPIO input invalid
2
ns
Nonswitching electrical specifications
MCF51JF128 Advance Information Data Sheet, Rev. 3, 08/2011.
18
Preliminary
Freescale Semiconductor, Inc.
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