參數(shù)資料
型號: SAB-C505A-4EM
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8-BIT, OTPROM, 20 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, MQFP-44
文件頁數(shù): 30/85頁
文件大?。?/td> 335K
代理商: SAB-C505A-4EM
Semiconductor Group
30
1997-12-01
C505 / C505C
C505A / C505CA
Timer / Counter 0 and 1
Timer/Counter 0 and 1 can be used in four operating modes as listed in
table 7
:
In the “timer” function (C/T = ‘0’) the register is incremented every machine cycle. Therefore the
count rate is
f
OSC
/6.
In the “counter” function the register is incremented in response to a 1-to-0 transition at its
corresponding external input pin (P3.4/T0, P3.5/T1). Since it takes two machine cycles to detect a
falling edge the max. count rate is
f
OSC
/12. External inputs INT0 and INT1 (P3.2, P3.3) can be
programmed to function as a gate to facilitate pulse width measurements.
Figure 10
illustrates the
input clock logic.
Figure 10
Timer/Counter 0 and 1 Input Clock Logic
Table 7
Timer/Counter 0 and 1 Operating Modes
Mode
Description
TMOD
Input Clock
M1
M0
internal
f
/6x32
external (max)
f
OSC
/12x32
0
8-bit timer/counter with a
divide-by-32 prescaler
0
0
1
16-bit timer/counter
1
1
f
OSC
/6
f
OSC
/12
2
8-bit timer/counter with
8-bit autoreload
1
0
3
Timer/counter 0 used as one
8-bit timer/counter and one
8-bit timer
Timer 1 stops
1
1
MCS03117
1
&
OSC
C/T = 0
C/T = 1
Control
=1
6
TR1
P3.5/T1
(TMOD)
P3.2/INT0
P3.3/INT1
f
Timer 0/1
Input Clock
OSC
/6
P3.4/T0
TR0
Gate
÷
_
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAB-C505A-4EM-BA 制造商:Rochester Electronics LLC 功能描述:- Bulk
SAB-C505C-2RM 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAB-C505CA-4EM 制造商:Infineon Technologies 功能描述:Bulk
SAB-C505CA-4EM CA 功能描述:8位微控制器 -MCU 8 BIT OTP 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
SAB-C505CA-4EM CATR 制造商:Infineon Technologies AG 功能描述: