参数资料
型号: ST72F32AK2TB
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, PQFP32
封装: 7 X 7 MM, PLASTIC, TQFP-32
文件页数: 85/157页
文件大小: 1516K
代理商: ST72F32AK2TB
ST7232A
33/157
INTERRUPTS (Cont’d)
Table 8. Interrupt Mapping
Note 1: Unexpected exit from HALT may occur when SPI is in slave mode.
7.6 EXTERNAL INTERRUPTS
7.6.1 I/O Port Interrupt Sensitivity
The external interrupt sensitivity is controlled by
the IPA, IPB and ISxx bits of the EICR register
(Figure 19). 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:
Falling edge
Rising edge
Falling and rising edge
Falling edge and low level
Rising edge and high level (only for ei0 and ei2)
To guarantee correct functionality, the sensitivity
bits in the EICR register can be modified only
when the I1 and I0 bits of the CC register are both
set to 1 (level 3). This means that interrupts must
be disabled before changing sensitivity.
The pending interrupts are cleared by writing a dif-
ferent value in the ISx[1:0], IPA or IPB bits of the
EICR.
Source
Block
Description
Register
Label
Priority
Order
Exit
from
HALT
Exit
from
ACTIVE
HALT
Address
Vector
RESET
Reset
N/A
yes
FFFEh-FFFFh
TRAP
Software interrupt
no
FFFCh-FFFDh
0
Not used
FFFAh-FFFBh
1
MCC/RTC
Main clock controller time base inter-
rupt
MCCSR
Higher
Priority
yes
FFF8h-FFF9h
2
ei0
External interrupt port A3..0
N/A
yes
no
FFF6h-FFF7h
3
ei1
External interrupt port F2..0
yes
no
FFF4h-FFF5h
4
ei2
External interrupt port B3..0
yes
no
FFF2h-FFF3h
5
ei3
External interrupt port B7..4
yes
no
FFF0h-FFF1h
6
Not used
FFEEh-FFEFh
7
SPI
SPI peripheral interrupts
SPICSR
yes 1)
no
FFECh-FFEDh
8
TIMER A
TIMER A peripheral interrupts
TASR
no
FFEAh-FFEBh
9
TIMER B
TIMER B peripheral interrupts
TBSR
no
FFE8h-FFE9h
10
SCI
SCI Peripheral interrupts
SCISR
Lower
Priority
no
FFE6h-FFE7h
11
Not used
FFE4h-FFE5h
1
相关PDF资料
PDF描述
ST72F32AK2TC 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
ST7232AK1T1/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32
ST7232AK1TA/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32
ST7232AK1TB/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32
ST72F32AK2B5 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32
相关代理商/技术参数
参数描述
ST72F340K2T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F340K4T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F340S2T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F340S4T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F344K2T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT