參數(shù)資料
型號: M30623M4A-XXXGP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 14 MM, 0.65 MM PITCH, PLASTIC, QFP-80
文件頁數(shù): 12/143頁
文件大?。?/td> 3168K
代理商: M30623M4A-XXXGP
Clock asynchronous serial I/O (UART) mode
Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
106
Table 1.14.7 lists the functions of the input/output pins during UART mode. Note that for a period from
when the UARTi operation mode is selected to when transfer starts, the TxDi pin outputs an “H”. (If the N-
channel open-drain is selected, this pin is in floating state.)
Table 1.14.7. Input/output pin functions in UART mode
Pin name
Function
Method of selection
TxDi
(P63, P67, P70)
Serial data
output
Serial data
input
Programmable
I/O port
Transfer clock
input
Programmable
I/O port
RxDi
(P62, P66, P71)
CLKi
(P61, P65)
Internal/external clock select bit (bit 3 at address 03A016, 03A816) = “0”
Internal/external clock select bit (bit 3 at address 03A016, 03A816) = “1”
Port P61 and P65 direction register (bits 1 and 5 at address 03EE16) = “0”
Port P62, P66 and P71 direction register (bits 2 and 6 at address 03EE16,
bit 1 at address 03EF16)= “0”
(Can be used as an input port when performing transmission only)
CTS/RTS disable bit (bit 4 at address 03A416, 03AC16) =“0”
CTS/RTS function select bit (bit 2 at address 03A416, 03AC16) = “0”
Port P60 and P64 direction register (bits 0 and 4 at address 03EE16) = “0”
CTS/RTS disable bit (bit 4 at address 03A416, 03AC16) = “0”
CTS/RTS function select bit (bit 2 at address 03A416, 03AC16) = “1”
CTS/RTS disable bit (bit 4 at address 03A416, 03AC16) = “1”
CTS input
RTS output
CTSi/RTSi
(P60, P64)
Note 1: Since CLK2(P72) does not have external port, use internal as UART2 transfer clock.
_______ _______
_______
Note 2: Set the CTS/RTS disable bit (bit 4 at address 037C16) to “1” because CTS2/RTS2(P73) does not have
external port.
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