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参数资料
型号： UPSD3212CV-24T6
厂商： 意法半导体
英文描述： Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
中文描述： 闪存可编程系统设备与8032具有USB和可编程逻辑控制器
文件页数： 36/163页
文件大小： 2844K
代理商： UPSD3212CV-24T6
uPSD3212A, uPSD3212C, uPSD3212CV
36/163
USART Interrupt
–
The USART Interrupt is generated by RI
(Receive Interrupt) OR TI (Transmit Interrupt).
–
When the USART Interrupt is generated, the
corresponding request flag must be cleared by
the software. The interrupt service routine will
have to check the various USART registers to
determine the source and clear the
corresponding flag.
–
Both USART’s are identical, except for the
additional interrupt controls in the Bit 4 of the
additional interrupt control registers (A7H,
B7H).
Interrupt Priority Structure
Each interrupt source can be assigned one of two
priority levels. Interrupt priority levels are defined
by the interrupt priority special function register IP
and IPA.
0 = low priority
1 = high priority
A low priority interrupt may be interrupted by a
high priority interrupt level interrupt. A high priority
interrupt routine cannot be interrupted by any oth-
er interrupt source. If two interrupts of different pri-
ority occur simultaneously, the high priority level
request is serviced. If requests of the same priority
are received simultaneously, an internal polling
sequence determines which request is serviced.
Thus, within each priority level, there is a second
priority structure determined by the polling se-
quence.
Interrupts Enable Structure
Each interrupt source can be individually enabled
or disabled by setting or clearing a bit in the inter-
rupt enable special function register IE and IEA. All
interrupt source can also be globally disabled by
the clearing Bit EA in IE (see Table
19
). Please
see Tables
20
,
21
,
22
, and
23
for individual bit de-
scriptions.
Table 18. Priority Levels
Table 19. SFR Register
Source
Priority with Level
Int0
0 (highest)
2nd USART
1
Timer 0
2
I2C
3
Int1
4
reserved
5
Timer 1
6
USB
7
1st USART
8
Timer 2+EXF2
9 (lowest)
SFR
Addr
Reg
Name
Bit Register Name
ValueComments
7
6
5
4
3
2
1
0
A7
IEA
—
—
—
ES2
—
—
EI
2
C
EUSB
00
Interrupt
Enable (2nd)
A8
IE
EA
—
ET2
ES
ET1
EX1
ET0
EX0
00
Interrupt
Enable
B7
IPA
—
—
—
PS2
—
—
PI
2
C
PUSB
00
Interrupt
Priority (2nd)
B8
IP
—
—
PT2
PS
PT1
PX1
PT0
PX0
00
Interrupt
Priority
相关PDF资料
PDF描述
UPSD3212CV-24U6 Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
uPSD3212C Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(带8032微控制器内核和16Kbit SRAM的FLASH可编程系统器件)
uPSD3212CV Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(带8032微控制器内核和16Kbit SRAM的FLASH可编程系统器件)
uPSD3212 Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可编程系统器件)
UPSD3215A-24T1 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
相关代理商/技术参数
参数描述
UPSD3212CV-24T6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212CV-24U1T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
UPSD3212CV-24U6 功能描述:8位微控制器 -MCU 3.0V 512K 24MHz 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
UPSD3212CV-24U6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212CV-40T1T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
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