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參數(shù)資料
| 型號： | W925E625 |
| 英文描述： | Telephone Controller |
| 中文描述： | 電話控制器 |
| 文件頁數(shù)： | 48/71頁 |
| 文件大?。?/td> | 1055K |
| 代理商： | W925E625 |
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W925E/C625
8-bit CID Microcontroller
6.13 I/O Ports
Revision : A6
-48-
Release Date : 2002/7/2
There are six 8-bit ports named from P0 to P4 in W925E/C625. All ports can be configured as
input or output mode. Except P0, every port has pull high resistor enable/disable by PxH register.
After reset the initial state of each port is in input mode and the value of the registers from P0 to
P3 are FFh. The I/O port is described as below:
P0
: I/O mode is controlled by P0IO. Only
P0 output as open drain mode
and without pull high
resistor.
P1
: I/O mode is controlled by P1IO. Pull high is controlled by P1H.
P1.0~P1.3 work as INT2
,
P1.4~P1.7 work as INT3
.
Falling edge
on P1 pins to produce INT2 and INT3 flag.
P1 is
configured as INT2/INT3 by P1EF register.
P2
: I/O mode is controlled by P2IO. Pull high is controlled by P2H.
P3
: I/O mode is controlled by P3IO. Pull high is controlled by P3H.
P3.5
T1
Timer/counter 1 external count input
P3.4
T0
Timer/counter 0 external count input
P3.3
INT1
External interrupt 1
P3.2
INT0
External interrupt 0
P4
: I/O mode is controlled by P4IO. Pull high is controlled by P4H.
Special function of P4 is described below.
P4.4
Vpos
Positive input of the comparator
P4.2
Vneg
Negative input of the comparator
P4.1
SDATA
Serial port output
P4.0
SCLK
Serial port input
6.14 Divider
A built-in 13/14-bit binary up-counter designed to generate periodic interrupt. The clock source is
from sub-oscillator. When the frequency of sub-crystal is 32768Hz, it provides the divider interrupt
in the period of 0.25/0.5 second. Bit DIVS controls the degree of divider. When DIVA is high to
enable the divided counter, when DIVA is low to reset divider and stop counting. As the divider
overflows, the divider interrupt flag DIVF is set. DIVF is clear by software or serving divider
interrupt routine.
13
14
1
overflow
DIVF
(EXIF.3)
DIVS
(CKCON1.1)
DIVA
(DIVC.0)
Fs
ck
D
Q
CR
Executing DIV Int
Clear by software
Figure 6-13 13/14-bit Divider
6.15 LCD
1792 dots: 56 Segments x 32 Common, 1/5 bias
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 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 程序存儲器容量:- 程序存儲器類型: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 |
| W925G240 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT CID MICROCONTROLLER |
| W925G625 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-bit CID MICROCONTROLLER |
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