M30621ECGP MITSUBISHI [Mitsubishi Electric Semiconductor], M30621ECGP Datasheet - Page 105

• Manufacturer Part Number: M30621ECGP
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Clock asynchronous serial I/O (UART) mode
Table 1.14.7. Input/output pin functions in UART mode
(when separate CTS/RTS pins function is not selected)
Note 1: Since CLK
Note 2: Since CTS
RxDi
(P6
CLKi
(P6
TxDi
(P6
CTSi/RTSi
(P6
Table 1.14.7 lists the functions of the input/output pins during UART mode. This table shows the pin
functions when the separate CTS/RTS pins function is not selected. Note that for a period from when the
UARTi operation mode is selected to when transfer starts, the TxDi pin outputs a “H”. (If the N-channel
open-drain is selected, this pin is in floating state.)
Pin name
1
2
0
3
, P6
, P6
, P6
, P6
037C
6
5
4
7
)
, P7
)
, P7
16
1
0
)
)
= “1”).
________ _______
Serial data
output
Programmable
I/O port
CTS input
RTS output
Serial data
input
Transfer clock
input
Programmable
I/O port
2
2
/RTS
(P7
Function
2
) does not have external port, use internal as UART2 transfer clock.
2
(P7
3
) does not have external port, select CTS/RTS function inhavit (bit 4 at address
_______ _______
Port P6
bit 1 at address 03EF
(Can be used as an input port when performing transmission only)
Internal/external clock select bit (bit 3 at address 03A0
CTS/RTS disable bit (bit 4 at address 03A4
CTS/RTS function select bit (bit 2 at address 03A4
Internal/external clock select bit (bit 3 at address 03A0
Port P6
CTS/RTS disable bit (bit 4 at address 03A4
CTS/RTS function select bit (bit 2 at address 03A4
Port P6
CTS/RTS disable bit (bit 4 at address 03A4
2
1
0
, P6
and P6
and P6
6
and P7
5
4
direction register (bits 1 and 5 at address 03EE
direction register (bits 0 and 4 at address 03EE
1
16
direction register (bits 2 and 6 at address 03EE
)= “0”
Method of selection
_______ _______
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
16
16
, 03AC
, 03AC
, 03AC
M16C / 62 Group (80-pin)
16
16
16
16)
16
, 03AC
, 03AC
16
) =“0”
) = “1”
16
Mitsubishi microcomputers
= “0”
, 03A8
, 03A8
16
16
) = “0”
) = “1”
16
16
) = “0”
) = “1”
16
16
) = “0”
) = “0”
16
,
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