参数资料
| 型号： | ID82C55A |
| 厂商： | Intersil |
| 文件页数： | 7/29页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER 24B 40DIP |
| 标准包装： | 99 |
| 接口： | 可编程 |
| 输入/输出数： | 24 |
| 中断输出： | 无 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 40-CDIP（0.600"，15.24mm） |
| 供应商设备封装： | 40-Cerdip |
| 包装： | 管件 |
第1页第2页第3页第4页第5页第6页当前第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
15
FN2969.10
November 16, 2006
Modes 1 or 2, Port C generates or accepts “hand shaking”
signals with the peripheral device. Reading the contents of
Port C allows the programmer to test or verify the “status” of
each peripheral device and change the program flow
accordingly.
There is not a special instruction to read the status
information from Port C. A normal read operation of Port C is
executed to perform this function.
Applications of the 82C55A
The 82C55A is a very powerful tool for interfacing peripheral
equipment to the microcomputer system. It represents the
optimum use of available pins and is flexible enough to
interface almost any I/O device without the need for
additional external logic.
Each peripheral device in a microcomputer system usually
has a “service routine” associated with it. The routine
manages the software interface between the device and the
CPU. The functional definition of the 82C55A is programmed
by the I/O service routine and becomes an extension of the
system software. By examining the I/O devices interface
characteristics for both data transfer and timing, and
matching this information to the examples and tables in the
detailed operational description, a control word can easily be
developed to initialize the 82C55A to exactly “fit” the
application. Figures 18 through 24 present a few examples
of typical applications of the 82C55A.
INTERRUPT
ENABLE FLAG
POSITION
ALTERNATE PORT C
PIN SIGNAL (MODE)
INTE B
PC2
ACKB (Output Mode 1)
or STBB (Input Mode 1)
INTE A2
PC4
STBA (Input Mode 1 or Mode
2)
INTE A1
PC6
ACKA (Output Mode 1 or
Mode 2)
FIGURE 17. INTERRUPT ENABLE FLAGS IN MODES 1 AND 2
FIGURE 18. PRINTER INTERFACE
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PC7
PC6
PC5
PC4
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC1
PC2
DATA READY
ACK
PAPER FEED
FORWARD/REV.
DATA READY
ACK
PAPER FEED
FORWARD/REV.
RIBBON
CARRIAGE SEN.
MODE 1
(OUTPUT)
82C55A
MODE 1
(OUTPUT)
CONTROL LOGIC
AND DRIVERS
INTERRUPT
REQUEST
PC0
INTERRUPT
REQUEST
PC3
HAMMER
RELAYS
HIGH SPEED
PRINTER
82C55A
相关PDF资料 |
PDF描述 |
|---|---|
| ID82C82 | IC DRIVER BUS OCT LATCHING 20DIP |
| ID82C86H | IC TRANSCEIVER OCT BUS 20-DIP |
| IDT5V5201DCGI | TXRX 1CH M-LVDS TO LVTTL 8-SOIC |
| IDT5V5206DCGI | TXRX 1CH M-LVDS TO LVTTL 8-SOIC |
| IDT72T6360L7-5BBI | IC FLOW-CTRL 48BIT 7-5NS 324-BGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ID82C55A/+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Peripheral Interface |
| ID82C55A-5 | 制造商:HARRIS 制造商全称:HARRIS 功能描述:CMOS Programmable Peripheral Interface |
| ID82C59A | 功能描述:IC CONTROLLER INTERRUPT 28-DIP RoHS:否 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A |
| ID82C59A | 制造商:Intersil Corporation 功能描述:Controller IC Package/Case:28-CDIP |
| ID82C59A/+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Interrupt Controller |
发布紧急采购，3分钟左右您将得到回复。