- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366891 > CR16HCT9 PDF資料下載
參數(shù)資料
| 型號(hào)： | CR16HCT9 |
| 文件頁(yè)數(shù)： | 68/157頁(yè) |
| 文件大?。?/td> | 1256K |
| 代理商： | CR16HCT9 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)當(dāng)前第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)
www.national.com
68
MSK goes idle again. The MSK idle state can be either high
or low, depending on the MIDL bit.
17.3
In Slave mode, the MSK pin is an input for the shift clock
MSK. MDIDO is placed in TRI-STATE mode when MCS is in-
active. Data transfer is enabled when MCS is active.
The slave starts driving MDIDO when MCS is activated. The
most significant bit (lower byte in 8-bit mode or upper byte in
16-bit mode) is output onto the MDIDO pin first. After eight or
sixteen clocks (depending on the selected mode), the data
transfer is completed.
If a new shift process starts before MWDAT was written, i.e.,
while MWDAT does not contain any valid data, and the “Echo
Enable” (MECH) bit is set to 1, the data received from MDODI
is transmitted on MDIDO in addition to being shifted to MW-
DAT. If the MECH bit is cleared to 0, the data transmitted on
MDIDO is the data held in the MWDAT register, regardless of
its validity. The master may negate the MCS signal to syn-
chronize the bit count between the master and the slave. In
the case that the slave is the only slave in the system, MCS
can be tied to V
SS
.
17.4
INTERRUPT GENERATION
An interrupt is generated in any of the following cases:
— When the read buffer is full (MRBF=1) and the “Enable
Interrupt for Read” bit is set (MEIR=1).
— Whenever the shifter is not busy, i.e. the MBSY bit is
cleared (MBSY=0) and the “Enable Interrupt for Write”
bit is set (MEIW=1).
— When an overrun condition occurs (MOVR is set to 1)
and the “Enable Interrupt on Overrun” bit is set
(MEIO=1). This usage is restricted to master mode.
Figure 30 illustrates the various interrupt capabilities of this
module.
SLAVE MODE
17.5
The software interacts with the MICROWIRE interface by ac-
cessing the MICROWIRE registers. There are five such reg-
isters:
— MICROWIRE Data Register (MWDAT)
MICROWIRE INTERFACE REGISTERS
— MICROWIRE Control Register (MWCTL)
— MICROWIRE Status Register (MWSTAT)
17.5.1
The MWDAT register is a word-wide, read/write register used
to transmit and receive data through the MDODI and MDIDO
pins. Figure 31 shows the hardware structure of the register.
MICROWIRE Data Register (MWDAT)
Figure 29.
Alternate Mode, MIDL Bit = 1
End of Transfer
Sample Point
Shift Out
Data Out
Data In
msb
msb-1
msb-2
Bit 1
Bit 0 (lsb)
msb
msb-1
msb-2
Bit 1
Bit 0 (lsb)
MSKn
Figure 30.
MWSPI Interrupts
Interrupt
MWSPI
MOVR = 1
MRBF = 1
MBSY = 0
MEIW
MEIR
MEIO
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CR16HCT9VJE7 | Microcontroller |
| CR16HCT9VJE7Y | Microcontroller |
| CR16HCT9VJE8 | Microcontroller |
| CR16HCT9VJE8Y | Microcontroller |
| CR16HCT9VJE9 | Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CR16HCT9VJE7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| CR16HCT9VJE7Y | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| CR16HCT9VJE8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| CR16HCT9VJE8Y | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| CR16HCT9VJE9 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。