參數(shù)資料
型號(hào)： SX20AC
廠商： Electronic Theatre Controls, Inc.
英文描述： Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
中文描述： 配置通信控制器與電子工程/閃存程序存儲(chǔ)器，在系統(tǒng)編程能力和片上調(diào)試
文件頁(yè)數(shù)： 19/52頁(yè)
文件大?。?/td> 688K
代理商： SX20AC
2000 Scenix Semiconductor, Inc. All rights reserved.
- 19 -
www.scenix.com
SX18AC/SX20AC/SX28AC/SX18AC75/SX20AC75/SX28AC75
8.0
The device supports both internal and external maskable
interrupts. The internal interrupt is generated as a result
of the RTCC rolling over from 0FFh to 00h. This interrupt
source has an associated enable bit located in the
OPTION register. There is no pending bit associated with
this interrupt.
Port B provides the source for eight external software
selectable, edge sensitive interrupts. These interrupt
sources share logic with the Multi-Input Wakeup circuitry.
The WKEN_B register allows interrupt from Port B to be
individually enabled or disabled. Clearing a bit in the
WKEN_B register enables the interrupt on the corre-
sponding Port B pin. The WKED_B selects the transition
INTERRUPT SUPPORT
edge to be either positive or negative. The WKEN_B and
WKED_B registers are set to FFh upon reset. Setting a
bit in the WKED_B register selects the falling edge while
clearing the bit selects the rising edge on the correspond-
ing Port B pin.
The WKPND_B register serves as the external interrupt
pending register.
The WKPND_B register comes up a with random value
upon reset. The user program must clear the WKPND_B
register prior to enabling the interrupt. The proper
sequence is described in Section 7.2
Figure 8-1 shows the structure of the interrupt logic.
.
Figure 8-1. Interrupt Structure
RTCC
WKED_B
I
WKED_B
WKPND_B
WKPND_B
From MODE
(MODE = 09)
OPTION
RTE_IE
WKEN_B
1 = Ext. Interrupt through Port B
0 = Power Down Mode, no Ext. Interrupt
STATUS
Register
PD bit
Port B PIN
Interrupt
PC
000
Interrupt Stack
PC
Overflow
From MODE
(MODE = 0A)
相關(guān)PDF資料
PDF描述
SX20AC75 Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX28 Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX28AC Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX18AC75 Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX48BD Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability, and On-Chip Debug
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SX20AC/SS 功能描述:8位微控制器 -MCU 75MHz 2048x12 Flash 136 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
SX20AC/SS-G 功能描述:8位微控制器 -MCU RISC 75MHz 8bit timer RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
SX20AC100-I/DP 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX20AC100-I/PQ 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
SX20AC100-I/SO 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
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