参数资料
型号: ST72311R9T3/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, TQFP-64
文件页数: 93/152页
文件大小: 1909K
代理商: ST72311R9T3/XXX
ST72311R, ST72511R, ST72532R
45/152
9 MISCELLANEOUS REGISTERS
The miscellaneous registers allow control over
several features such as the external interrupts or
the I/Oalternate functions.
9.1 I/O PORT INTERRUPT SENSITIVITY
The external interrupt sensitivity is controlled by
the IPA, IPB and ISxx bits of the Miscellaneous
registers (Figure 27). This control allows to have
up to 4 fully independent external interrupt source
sensitivities.
Each external interrupt source can be generated
on four (or five) different events on the pin:
s
Falling edge
s
Rising edge
s
Falling and rising edge
s
Falling edge and low level
s
Rising edge and high level (only for ei0 and ei2)
To guarantee correct functionality, the sensitivity
bits in the MISCR registers must be modified only
when the I1 and I0 bits of the CC register are both
set to 1 (level 3). See I/O port register and Miscel-
laneous register descriptions for more details on
the programming.
9.2 I/O PORT ALTERNATE FUNCTIONS
The MISCR registers allow to manage four I/O port
miscellaneous alternate functions:
s
Main clock signal (fOSC/2) output on PF0
s
A Beep signal output on PF1 (with three
selectable audio frequencies)
s
A TLI management on a dedicated pin
s
A SPI SS pin internal control to use the PC7 I/O
port function while the SPI is active.
These functions are described in details in the
Figure 27. External Interrupt Sources vs MISCR
ei0
INTERRUPT
SOURCE
ei1
INTERRUPT
SOURCE
IS20
IS21
MISCR1
SENSITIVITY
CONTROL
PA3
PA2
MISCR2.IPA
PA1
PA0
PF2
PF1
PF0
ei2
INTERRUPT
SOURCE
ei3
INTERRUPT
SOURCE
IS10
IS11
MISCR1
SENSITIVITY
CONTROL
PB3
PB2
MISCR2.IPB
PB1
PB0
PB7
PB6
PB5
PB4
SOURCES
相关PDF资料
PDF描述
ST72T311R7T7 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72T532R4T6 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72311R7T6/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72311R7T3/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72T511R6T7 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
相关代理商/技术参数
参数描述
ST72311R9T6 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, EEPROM, ADC, 16-BIT TIMERS, 8-BIT PWM ART, SPI, SCI, CAN INTERFACES
ST72311R9T6/XXX 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller
ST72311R9T6S 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, EEPROM, ADC, 16-BIT TIMERS, 8-BIT PWM ART, SPI, SCI, CAN INTERFACES
ST72311R9T6S/XXX 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller
ST72311R9T7 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, EEPROM, ADC, 16-BIT TIMERS, 8-BIT PWM ART, SPI, SCI, CAN INTERFACES