參數(shù)資料
型號: SAB-C540U-EN
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, 12 MHz, MICROCONTROLLER, PQCC44
文件頁數(shù): 27/65頁
文件大?。?/td> 427K
代理商: SAB-C540U-EN
Semiconductor Group
27
1997-10-01
C540U
C541U
Timer / Counter 0 and 1
Timer/Counter 0 and 1 can be used in four operating modes as listed in
table 6
:
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 11
illustrates the
input clock logic.
Figure 11
Timer/Counter 0 and 1 Input Clock Logic
Table 6
Timer/Counter 0 and 1 Operating Modes
Mode
Description
TMOD
Input Clock
M1
M0
internal
f
OSC
/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
÷
_
<
相關PDF資料
PDF描述
SAB-C540U-EP 8-Bit CMOS Microcontroller
SAB-C541U-1EP 8-Bit CMOS Microcontroller
SAB-R2000A MOSFET N-CH 300V 73A TO-264AA
SAB-R2000A-12-A HIGH PERFORMANCE 32-BIT RISC MICROPROCESSOR
SAB-R2000A-16-A MOSFET N-CH 200V 90A TO-264AA
相關代理商/技術參數(shù)
參數(shù)描述
SAB-C540U-EP 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAB-C-541U-1EN 制造商:Infineon Technologies AG 功能描述:
SAB-C541U-1EN 制造商:Rochester Electronics LLC 功能描述:- Bulk
SABC541U1ENCA 制造商:Rochester Electronics LLC 功能描述:- Bulk
SAB-C541U-1EP 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller