參數(shù)資料
型號(hào)： M37510E6-XXXFP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP176
封裝： PLASTIC, QFP-176
文件頁(yè)數(shù)： 10/43頁(yè)
文件大小： 614K
代理商： M37510E6-XXXFP
18
7510 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Data bus
Receive buffer
Address 001816 003016
Receive buffer full flag (RBF)
Receive interrupt request (RI)
Serial I/O control register
Receive shift register
Shift clock
Clock control circuit
Falling-edge detector
Serial I/O
synchronous clock selection bit
Frequency division ratio 1/(n+1)
Baud rate generator
Address 001C16 003416
Shift clock
Transmit shift register
Transmit buffer register
Transmit interrupt source selection bit
Transmit shift completion flag (TSC)
Transmit interrupt request (TI)
Transmit buffer empty flag (TBE)
Serial I/O status register
Address 001816
Data bus
F/F
P44/RXD1
P30/RXD2
P46/SCLK1
P32/SCLK2
f(XIN)
P47/SRDY1
P33/SRDY2
P45/TXD1
P31/TXD2
Contents in
are for serial I/O2.
1/4
Address 001A16 003216
Address 001916 003116
BRG count source selection bit
003016
SERIAL I/O
The 7510 group has two built-in serial I/O channels (serial I/O1
and serial I/O2). Both serial I/O ports are functionally identical.
Serial I/O 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.
Clock Synchronous Serial I/O Mode
Clock synchronous serial I/O mode can be selected by setting the
mode selection bit of the serial I/O control register (addresses
001A16 and 003216) to “1”.
For clock synchronous serial I/O, the transmitter and the receiver
must use the same clock. If an internal clock is used, transfer is
started by a write signal to the TB/RB (addresses 001816 and
003016).
Fig. 13 Block diagram of clock synchronous serial I/O
Fig. 14 Operation of clock synchronous serial I/O function
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
D0
Internal clock
φ
Transfer shift clock
(1/2 to 1/2048 of the internal
clock, or an external clock)
Serial output TXD
Serial input RXD
Receive enable signal SRDY
Write signal to
receive/transmit buffer
TBE = 0
TBE = 1
TSC = 0
RBF = 1
TSC = 1
Overrun error (OE) detection
The transmit interrupt (TI) can be selected to occur either when the transmit buffer 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/O control register.
If data is written to the transmit buffer when TSC = 0, the transmit clock is generated continuously and serial data is output continuously
from the TXD pin.
The receive interrupt (RI) is set when the receive buffer full flag (RBF) becomes “1”.
Notes 1 :
2 :
3 :
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