- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361798 > W925E240 Telephone Controller PDF資料下載
參數(shù)資料
| 型號(hào)： | W925E240 |
| 英文描述： | Telephone Controller |
| 中文描述： | 電話控制器 |
| 文件頁數(shù)： | 9/66頁 |
| 文件大小： | 930K |
| 代理商： | W925E240 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁
W925E/C240
8-bit CID Microcontroller
Revision : A6
-9-
Release Date : 2002/7/2
6
The W925E/C240 is an 8-bit micro-controller with CID function. The 8-bit micro-control has the
same instruction set as the 8051 family, with one addition: DEC DPTR (op-code A5H, the DPTR
is decreased by 1). In addition, the W925E/C240 contains on-chip 8K bytes MOVX RAM.
ROM:
There are 256K bytes EEPROM/MASK ROM. Only 128K bytes EEPROM/MASK ROM is used for
program code. The completely 256K bytes EEPROM/MASK ROM can be used for the look-up
table memory.
On-chip Data RAM:
The W925E/C240 has 8K normal RAM which address is from 0000H to 1FFFH. It only can be
accessed by MOVX instruction; this on-chip RAM is optional under software control. The on-chip
data RAM is not used for executable program memory. There is no conflict or overlap among the
256 bytes scratchpad RAM and the 8K Bytes MOVX RAM as they use different addressing
modes and separate instructions.
CID:
The CID functions include the FSK decoder, CAS detector, DTMF decoder and ring detector.
FSK modulator:
Support ITU-T V.23 and Bellcore 202 FSK transmit modulated signal.
DTMF modulator:
The W925E/C240 built-in dual tone multi-frequency generator.
I/O Ports:
The W925E/C240 has five 8-bit I/O ports giving a total of 40 lines. Port0 to Port3 can be used as
an 8-bit general I/O port with bit-addressable. The I/O mode of each port is controlled by PxIO
registers. Port1 to Port4 have internal pull high resistors enabled/disabled by PxH registers. Port0
is open-drain type in output mode.
Serial I/O port:
The serial port, through P4.0 (SCLK) and P4.1 (SDATA), is an 8-bit synchronous serial I/O
interface.
Timers:
The W925E/C240 has two 13/16-bit timers or 8 bits auto-reload timers. An independent watchdog
timer is used as a system monitor or as a very long time period timer. A divider can produce the
divider interrupt in every period of 0.5S or 0.25S.
Comparator:
The W925E/C240 has an internal comparator with one external analog signal input path VNEG
and an external path VPOS or a regulator voltage for the reference input REF1.
Interrupts:
The W925E/C240 provides eleven interrupt resources with two priority level, including 4 external
interrupt sources, 2 timer interrupts, 1 CID interrupt, 1 divider interrupt, 1 serial port interrupt, 1
comparator interrupt and 1 watchdog timer interrupt.
Power Management:
The W925E/C240 has IDLE and POWER DOWN modes of operation. In the IDLE mode, the
clock to the CPU core is stopped however the functions of the timers, divider, CID and interrupts
are active continuously. In the POWER DOWN mode, both of the system clock stop oscillating
and the chip operation is completely stopped. POWER DOWN mode is the state of the lowest
power consumption.
FUNCTIONAL DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W925C625 | Telephone Controller |
| W925E625 | Telephone Controller |
| W9320 | A-Law/u-Law CODEC |
| W9320S | A-Law/u-Law CODEC |
| W942508BH | DRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W925E240FG | 功能描述:IC MCU 8-BIT W/CID 100-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W925 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| W925E625 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-bit CID MICROCONTROLLER |
| W925E625FG | 功能描述:IC MCU 8-BIT W/CID 160-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W925 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| W925EP01 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT CID MICROCONTROLLER |
| W925EP01FG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT CID MICROCONTROLLER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。