參數(shù)資料
型號(hào): M44C090
廠商: TEMIC SEMICONDUCTORS
元件分類(lèi): 微控制器/微處理器
英文描述: Low-Current Microcontroller for Wireless Communication
中文描述: 4-BIT, MROM, MICROCONTROLLER, PDSO20
封裝: SSOP-20
文件頁(yè)數(shù): 29/63頁(yè)
文件大?。?/td> 503K
代理商: M44C090
M44C890
M44C090
Rev.A4, 14-Dec-01
29 (63)
4
bit Counter 2/1
RES
OVF1
Compare 2/1
T2CO1
CM1
POUT
SSI POUT
CL2/2
DCG
T2M1
P4CR
8
bit Counter 2/2
RES
OVF2
Compare 2/2
T2CO2
T2CM
Control
TOG2
INT4
Biphase
,
Manchester
modulator
OUTPUT
MOUT
M2
to
Modulator 3
T2O
Timer 2
modulator
output
stage
T2M2
SO
Control
SSI
SSI
I/O
bus
T2C
CL2/1
T2I
SYSCL
T1OUT
SCL
I/O
bus
13394
DCGO
Figure 29. Timer 2
For programming the time interval, the timer has a 4-bit
and an 8-bit compare register. For programming the timer
function, it has four mode and control registers. The
comparator output of stage 2 is controlled by a special
compare mode register (T2CM). This register contains
mask bits for the actions (counter reset, output toggle,
timer interrupt) which can be triggered by a compare
match event or the counter overflow. This architecture en-
ables the timer function for various modes.
Timer 2 compare data values
The Timer 2 has a 4-bit compare register (T2CO1) and an
8-bit compare register (T2CO2). Both these compare
registers are cascadable as a 12-bit compare register, or
8-bit compare register and 4-bit compare register.
For 12-bit compare data value:m = x +1 0
x
4095
For 8-bit compare data value: n = y +1 0
y
255
For 4-bit compare data value: l = z +1 0
z
15
Timer 2 Modes
Mode 1: 12-bit compare counter
The 4-bit stage and the 8-bit stage work together as a
12-bit compare counter. A compare match signal of the
4-bit and the 8-bit stage generates the signal for the
counter reset, toggle flip-flop or interrupt. The compare
action is programmable via the compare mode register
(T2CM). The 4-bit counter overflow (OVF1) supplies the
clock output (POUT) with clocks. The duty-cycle
generator (DCG) has to be bypassed in this mode.
4-bit counter
4-bit compare
RES
4-bit register
CM1
POUT (CL2/1 /16)
8-bit counter
8-bit compare
8-bit register
OVF2
CM2
RES
T2RM
T2OTM
Timer 2
output mode
and T2OTM
bit
T2IM
T2CTM
TOG2
INT4
CL2/1
13778
DCG
T2D1, 0
Figure 30. 12-bit compare counter
相關(guān)PDF資料
PDF描述
M44C090-H Low-Current Microcontroller for Wireless Communication
M44C890 Low-Current Microcontroller for Wireless Communication
M44C890-H Low-Current Microcontroller for Wireless Communication
M4N25 6-Pin DIP Optoisolators Transistor Output
M4N26 6-Pin DIP Optoisolators Transistor Output
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M44C090-H 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication
M44C890 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication
M44C890-H 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication
M44S05K4F1 功能描述:汽車(chē)連接器 MX44 Terminals RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類(lèi)型: 觸點(diǎn)電鍍:Nickel
M44T332538880MHZ 制造商:MEC 功能描述: