m30240 Mitsumi Electronics, Corp., m30240 Datasheet - Page 99
m30240
Manufacturer Part Number
m30240
Description
M30240 16-bit Microcomputer
Manufacturer
Mitsumi Electronics, Corp.
Datasheet
1.M30240.pdf
(142 pages)
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Preliminary Specifications REV. E
Specifications in this manual are tentative and subject to change
UART0 through UART2
Table 1.29:
TxDi
RxDi
(P62, P66, P71)
CLKi
(P61, P65, P72)
CTSi/RTSi
(P60,P64,P73)
(P63, P67, P70)
Pin name
Table 1.29 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 a “H”.
Figure 1.89 and Figure 1.90 show the typical UART mode transmit and receive timing diagrams.
Input/output pin functions in UART mode
Serial data
output
Serial data
input
Programmable
I/O port
Transfer clock
input
CTS input
RTS output
Programmable
I/O port
Function
Port P62, P66, and P71 direction register (bits 2 and 6 at address 03EE
at address 03EF
(Can be used as an input port when performing transmission only.)
Internal/external clock select bit (bit 3 at address 03A0
Internal/external clock select bit (bit 3 at address 03A0
Port P61, P65, and P72 direction register (bits 1 and 5 at address 03EE
at address 03EF
CTS/RTS disable bit (bit 4 at address 03A4
CTS/RTS function select bit (bit 2 at address 03A4
Port P60, P64 and P73 direction register (bits 0 and 4 at address 03EE
at address 03EF
CTS/RTS disable bit (bit 4 at address 03A4
CTS/RTS function select bit (bit 2 at address 03A4
CTS/RTS disable bit (bit 4 at address 03A4
1-99
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
16
16
)= “0”
) = “0”
) = “0”
Method of selection
16
16
16
Mitsubishi microcomputers
, 03AC
, 03AC
, 03AC
M30240 Group
16
16
16
16
16
, 03AC
, 03AC
16
16
, 037C
, 037C
, 037C
, 03A8
, 03A8
16
16
16
16
16
, 037C
, 037C
16
16
) = “0”
) = “0”
) = “1”
, 0378
, 0378
16
16
) = “0”
) = “1”
16
16
16
16
16
, bit 3
) = “0”
) = “1”
, bit 2
bit 1
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