- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄67775 > M44C892 (ATMEL CORP) 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 PDF資料下載
參數(shù)資料
| 型號： | M44C892 |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | SSO-20 |
| 文件頁數(shù)： | 51/84頁 |
| 文件大?。?/td> | 643K |
| 代理商： | M44C892 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第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頁當前第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頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁
M44C892
M44C892
M44C092
Rev. A5, 14-Dec-01
55 (84)
4 3210
76 54321 0
msb
lsb
rx data 1
rx data 2
rx data 3
msb
lsb
msb
lsb
Read SRB
(rx data 2)
Read SRB
(rx data 3)
Read SRB
(rx data 1)
SC
SD
SIR
SRDY
Interrupt
(IFN = 0)
Interrupt
(IFN = 1)
ACT
13825
765
43210
7 6 5
7654
Figure 61. Example of 8-bit synchronous receive operation
9-bit Shift Mode (I2C compatible)
In the 9-bit shift mode, the SSI is able to handle the I2C
protocol (described below). It always operates as an I2C
master device, i.e., SC is always generated and output by
the SSI. Both the I2C start and stop conditions are auto-
matically generated whenever the SSI is activated or
deactivated by the SIR–bit. In accordance with the I2C
protocol, the output data is always changed in the clock
low phase and shifted in on the high phase.
Before activating the SSI (SIR=0) and commencing an
I2C dialog, the appropriate data direction for the first
word must be set using the SDD control bit. The state of
this bit controls the direction of the data port (BP43 or
MCL_SD). Once started, the 8 data bits are, depending on
the selected direction, either clocked into or out of the
shift register. During the 9th clock period, the port
direction is automatically switched over so that the
corresponding acknowledge bit can be shifted out or read
in. In transmit mode, the acknowledge bit received from
the slave device is captured in the SSI Status Register
(TACK ) where it can be read by the controller. and in
receive mode, the state of the acknowledge bit to be
returned to the slave device is predetermined by the SSI
Status Register (RACK ).
Changing the directional mode (TX/RX) should not be
performed during the transfer of an I2C telegram. One
should wait until the end of the telegram which can be
detected using the SSI interrupt (IFN =1) or by
interrogating the ACT status.
A 9-bit telegram, once started will always run to
completion and will not be prematurely terminated by the
SIR bit. So, if the SIR–bit is set to ‘1’ in mit telegram, the
SSI will complete the current transfer and terminate the
dialog with an I2C stop condition.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M44C092 | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| M48T129Y-85PM1 | 0 TIMER(S), REAL TIME CLOCK, DMA32 |
| M48T129V-70PM1 | 0 TIMER(S), REAL TIME CLOCK, PDIP32 |
| M48T251Y-70PM1 | 0 TIMER(S), REAL TIME CLOCK, PDIP32 |
| M48T35Y-70PC6 | 0 TIMER(S), REAL TIME CLOCK, PDIP28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M44S05K4F1 | 功能描述:汽車連接器 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 安裝風格: 端接類型: 觸點電鍍:Nickel |
| M44T332538880MHZ | 制造商:MEC 功能描述: |
| M44T3338880MHZ | 制造商:MEC 功能描述: |
| M450 PSA2MCS100- | 制造商:TR FASTENINGS 功能描述:SCREW SLT PAN S/S A2 M4X50 制造商:TR FASTENINGS 功能描述:SCREW, SLT, PAN, S/S, A2, M4X50 制造商:TR FASTENINGS 功能描述:SCREW, SLT, PAN, S/S, A2, M4X50; Thread Size - Metric:M4; Screw Length:50mm; Fastener Material:Stainless Steel; Screw Head Style:Slotted Pan; SVHC:No SVHC (19-Dec-2012); Driver Type:Slotted; External Length / Height:50mm; ;RoHS Compliant: Yes |
| M450 PSSTMCZ100- | 制造商:TR FASTENINGS 功能描述:SCREW SLT PAN STEEL BZP M4X50 制造商:TR FASTENINGS 功能描述:SCREW, SLT, PAN, STEEL, BZP, M4X50 制造商:TR FASTENERS 功能描述:SCREW, SLT, PAN, STEEL, BZP, M4X50, Thread Size - Imperial:-, Thread Size - Metr |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。