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MB90420/5 (A) SERIES F
Operation Mode
0
Normal mode
1
Multiprocessor mode
2
Normal mode
— : Setting disabled
*1 : +1 is the address/data select bit (A/D) used for controlling communications.
*2 : During reception, only one bit can be detected as the stop bit.
n Interrupt related to UART and EI
Interrupt Factor
UART1 receive interrupt
UART1 transmit interrupt
UART0 receive interrupt
UART0 transmit interrupt
¥ : Function provided for stopping EI
∆ : EI
2
OS can be used when interrupt factors sharing ICR13, ICR14, or interrupt vector are not used.
2
MC-16LX FAMILY 16-BIT MICROCONTROLLERS HARDWARE MANUAL
Table 12-2 Operation Mode of UART
Data Length
No Parity
7 or 8 bits
1
8 + 1*
8
2
OS
Table 12-3 Interrupt Related to UART and EI
Interrupt Control
Register
Interrupt
No.
Register
Name
#37 (25
)
ICR13
H
#38 (26
)
ICR13
H
#39 (27
)
ICR14
H
#40 (28
)
ICR14
H
2
OS by detecting receive error in UART
Synchronous/
Asynchronous
With Parity
Asynchronous
—
Asynchronous
—
Synchronous
Vector Table Address
Address
Lower
0000BD
FFFF68
H
H
0000BD
FFFF64
H
H
0000BE
FFFF60
H
H
0000BE
FFFF5C
H
H
12-4
Length of Stop Bit
1 bit or 2 bits*
None
2
OS
Upper
Bank
FFFF69
FFFF6A
H
H
FFFF65
FFFF66
H
H
FFFF61
FFFF62
H
H
FFFF5D
FFFF5E
H
H
2
2
EI
OS
¥
∆
¥
∆
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