- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69035 > ML674000 (OKI ELECTRIC INDUSTRY CO LTD) 32-BIT, MROM, 33 MHz, RISC MICROCONTROLLER, PQFP128 PDF資料下載
參數(shù)資料
| 型號(hào)： | ML674000 |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, MROM, 33 MHz, RISC MICROCONTROLLER, PQFP128 |
| 封裝： | 14 X 14 MM, 0.40 MM PITCH, PLASTIC, TQFP-128 |
| 文件頁數(shù)： | 24/39頁 |
| 文件大?。?/td> | 247K |
| 代理商： | ML674000 |
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頁當(dāng)前第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
Rev.1.02
Jul 31, 2003
page 30 of 69
7560 Group (A version)
SERIAL I/O
Serial I/O1
Serial I/O1 can be used as either clock synchronous or asynchro-
nous (UART) serial I/O. A dedicated timer (baud rate generator) is
also provided for baud rate generation.
(1) Clock Synchronous Serial I/O Mode
Clock synchronous serial I/O mode is selected by setting the se-
rial I/O1 mode selection bit of the serial I/O1 control register to “1”.
For clock synchronous serial I/O mode, the transmitter and the re-
ceiver must use the same clock as an operation clock.
When an internal clock is selected as an operation clock, transmit
or receive is started by a write signal to the transmit buffer regis-
ter.
When an external clock is selected as an operation clock, serial I/
O1 becomes the state where transmit or receive can be performed
by a write signal to the transmit buffer register. Transmit and re-
ceive are started by input of an external clock.
Fig. 26 Block diagram of clock synchronous serial I/O1
Fig. 27 Operation of clock synchronous serial I/O1 function
P46/SCLK1
P47/SRDY1
P44/RXD
P45/TXD
XIN
1/4
F/F
Serial I/O1 status register
Serial I/O1 control register
Receive buffer register
Address 001816
Receive shift register
Receive buffer full flag (RBF)
Receive interrupt request
Receive clock control circuit
Shift clock
Serial I/O1 synchronous
clock selection bit
Frequency division ratio 1/(n+1)
Baud rate generator
Address 001C16
BRG count source selection bit
Falling-edge detector
Data bus
Address 001816
Shift clock
Transmit shift register shift completion flag (TSC)
Transmit buffer empty flag (TBE)
Transmit interrupt request
Transmit interrupt source selection bit
Address 001916
Data bus
Address 001A16
Transmit buffer register
Transmit shift register
Transmit clock control circuit
Receive enable signal SRDY1
D7
D0
D1
D2
D3
D4
D5
D6
RBF = “1”
TSC = “1”
TBE = “0”
TBE = “1”
TSC = “0”
Transmit and receive shift clock
(1/2 to 1/2048 of the internal
clock, or an external clock)
Serial output TXD
Serial input RXD
Write signal to receive/transmit
buffer register (address 001816)
Overrun error (OE)
detection
Notes 1 : After data transferring, the TxD pin keeps D7 output value.
2 : If data is written to the transmit buffer register when TSC = “0”, the transmit clock is generated continuously and serial data can
be output continuously from the TXD pin.
3 : Select the serial I/O1 transmit interrupt request factor between when the transmit buffer register has emptied (TBE = “1”) or
after the transmit shift operation has ended (TSC = “1”), by setting the transmit interrupt source selection bit (TIC) of the serial
I/O1 control register.
4 : The serial I/O1 receive interrupt request occurs when the receive buffer full flag (RBF) becomes “1”.
D7
D0
D1
D2
D3
D4
D5
D6
(Note 1)
(Note 3)
(Note 2)
(Note 3)
(Note 4)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML674001TC | 32-BIT, MROM, 33.333 MHz, RISC MICROCONTROLLER, PQFP144 |
| ML67Q4002TC | 32-BIT, FLASH, 33.333 MHz, RISC MICROCONTROLLER, PQFP144 |
| ML67Q4002LA | 32-BIT, FLASH, 33.333 MHz, RISC MICROCONTROLLER, PBGA144 |
| ML674001LA | 32-BIT, MROM, 33.333 MHz, RISC MICROCONTROLLER, PBGA144 |
| ML67Q4051TC | RISC MICROCONTROLLER, PQFP144 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML674000-KIT | 制造商:ROHM Semiconductor 功能描述:CMOS 32-Bit ARM-Based General-Purpose Single-Chip Microcontroller |
| ML674000LA | 制造商:ROHM Semiconductor 功能描述:ML674000LAZ03A |
| ML674000LAZ03A-7 | 制造商:ROHM Semiconductor 功能描述:NEW PART NO ML674000LAZ0ARL 制造商:ROHM Semiconductor 功能描述:ML674000LAZ03A-7 - Bulk |
| ML674000LAZ0AL | 制造商:ROHM Semiconductor 功能描述:ML674000LAZ0AL - Bulk |
| ML674000TBZ03A-7 | 制造商:ROHM Semiconductor 功能描述:Integrated Dual UART ARM7TDMI MCU 制造商:ROHM Semiconductor 功能描述:ARM7TDMI microprocessor integrated dual UART |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。