参数资料
型号: ST92186B3BK
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP32
封装: PLASTIC, SDIP-32
文件页数: 106/148页
文件大小: 1664K
代理商: ST92186B3BK
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ST92186B - TIMING AND CLOCK CONTROLLER (TCC)
FREQUENCY MULTIPLIERS (Cont’d)
Off-chip filter components (to be confirmed)
– Core frequency multiplier (FCPU pin): 1.2K
ohms; 47 nF plus 100 pF between the FCPU pin
and GND.
– Skew frequency multiplier (FOSD pin): 1.2K
ohms; 47 nF plus 100 pF between the FOSD pin
and GND.
The frequency multipliers are off during and upon
exiting from the reset phase. The user must pro-
gram the desired multiplying factor, start the multi-
plier and then wait for its stability (refer to the Elec-
trical Characteristics chapter for the specified de-
lay).
Once the Core/Peripherals multiplier is stabilized,
the Main Clock controller can be re-programmed
through the FMSL bit in the MCCR register to pro-
vide the final frequency (CPUCLK) to the CPU.
The
frequency
multipliers
are
automatically
switched off when the microprocessor enters
HALT mode (the HALT mode forces the control
register to its reset status).
Table 14. Examples of CPU Speed Choices
Note: 24 MHz is the max. authorized frequency.
Caution: The values indicated in this table are the only
authorized values.
Table 15. PIXCLK Frequency Choices
Crystal Frequency
FML
(3:0)
CPUCLK
SKDIV2=0
4 MHz
4
10 MHz
5
12 MHz
6
14 MHz
7
16 MHz
8
18 MHz
9
20 MHz
10
22 MHz
11
24 MHz
Crystal
Frequency
SKW
(3:0)
FPIXC
PIXCLK
SKDIV2=0
4 MHz
6
0
14 MHz
7
0
16 MHz
8
0
18 MHz
9
0
20 MHz
10
0
22 MHz
11
0
24 MHz
6
1
28 MHz
7
1
32 MHz
8
1
36 MHz
9
1
40 MHz
相关PDF资料
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ST92195B2T1/XXX 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP64
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