參數(shù)資料
型號(hào)： M30218MFCFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁數(shù)： 148/161頁
文件大?。?/td> 2043K
代理商： M30218MFCFP
87
Under
development
Tentative Specifications REV.A
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Serial I/O
Figure GA-1. Block diagram of UARTi (i = 0, 1)
Serial I/O
Serial I/O is configured as two channels: UART0 and UART1.
UART0 and UART1 each have an exclusive timer to generate a transfer clock, so they operate independently of each other.
Figure GA-1 shows the block diagram of UART0 and UART1. Figures GA-2 shows the block diagram of the transmit/receive unit.
UARTi (i=0, 1) has two operation modes: a clock synchronous serial I/O mode and a clock asynchronous
serial I/O mode (UART mode). The contents of the serial I/O mode select bits (bits 0 to 2 at addresses
03A016 and 03A816) determine whether UARTi is used as a clock synchronous serial I/O or as a UART.
Although a few function are different, UART0 and UART1 have almost same functions.
Figures GA-3 through GA-5 show the registers related to UARTi.
m: Values set to UART0 bit rate generator (U0BRG)
n : Values set to UART1 bit rate generator (U1BRG)
RxD0
1 / (m+1)
1/16
1/2
Bit rate generator
(address 03A116)
Clock synchronous type
(when internal clock is selected)
UART reception
Clock synchronous type
UART transmission
Clock synchronous type
(when internal clock is selected)
Clock synchronous type
(when external clock is
selected)
Receive clock
Transmit
clock
CLK0
Clock source selection
CTS0 / RTS0
f1
f8
f32
Internal
External
Vcc
RTS0
CTS0
TxD0
Transmit/
receive
unit
RxD1
1 / (n+1)
1/16
1/2
Bit rate generator
(address 03A916)
Clock synchronous type
(when internal clock is selected)
UART reception
Clock synchronous type
UART transmission
Clock synchronous type
(when internal clock is selected)
Clock synchronous type
(when external clock is selected)
Receive
clock
Transmit
clock
CLK1
Clock source selection
f1
f8
f32
Internal
External
RTS1
CTS1
TxD1
(UART1)
(UART0)
Polarity
reversing
circuit
Polarity
reversing
circuit
CTS/RTS disabled
Clock output pin
select switch
CTS1 / RTS1
CLKS1
CTS/RTS disabled
CTS/RTS selected
CTS/RTS disabled
VCC
CTS/RTS disabled
Reception control
circuit
Transmission
control circuit
Reception control
circuit
Transmission
control circuit
Transmit/
receive
unit
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