参数资料
型号: ST7FSCR1E4U1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC64
封装: QFN-64
文件页数: 35/101页
文件大小: 4506K
代理商: ST7FSCR1E4U1
ST7SCR1E4 ST7SCR1R4
39/101
MISCELLANEOUS REGISTER 3 (MISCR3)
Reset Value: 0000 0000 (00h)
Read/Write
This register is used to configure the edge and the
level sensitivity of the Port A and Port C external
interrupt. This means that all bits of a port must
have the same sensitivity.
If a write access modifies bits 7:4, it clears the
pending interrupts.
CTRL0_C, CTRL1_C : Sensitivity on port C
CTRL0_A, CTRL1_A : Sensitivity on port A
MISCELLANEOUS REGISTER 4 (MISCR4)
Reser Value : 0000 0000 (00h).
Read/Write
Bit 7 = Reserved.
Bit 6 = PLL_ON PLL Activation
0: PLL disabled
1: PLL enabled
Note: The PLL must be disabled before a HALT
instruction.
Bit 5 = CLK_SEL Clock Selection
This bit is set and cleared by software.
0: CPU frequency = 4MHz
1: CPU frequency = 8MHz
Bits 4:1 = Reserved.
Bit 0 = LOCK PLL status bit
0: PLL not locked. fCPU = fOSC external clock fre-
quency.
1: PLL locked. fCPU = 4 or 8 MHz depending on
CLKSEL bit.
7
0
CTR
L1_A
CTR
L0_A
CTR
L1_C
CTR
L0_C
-
CTR
L1_X
CTR
L0_X
External
Interrupt Sensitivity
0
Falling edge & low level
0
1
Rising edge only
1
0
Falling edge only
1
Rising and falling edge
7
0
-
PLL
_ON
CLK_
SEL
-
LOCK
相关PDF资料
PDF描述
ST7SCR1T1/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
ST7SCR1E4U1/XXX MICROCONTROLLER, QCC24
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