M30622 Mitsubishi, M30622 Datasheet - Page 131

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Clock asynchronous serial I/O (UART) mode
Table 1.19.7. Input/output pin functions in UART mode
(when separate CTS/RTS pins function is not selected)
Note 1: In M30623(80-pin package), use the internal clock as transfer clock of UART2, because there is no
Note 2: In M30623(80-pin package), UART2 does not have these functions, because there is no external pin
CLKi
(P6
RxDi
(P6
CTSi/RTSi
(P6
TxDi
(P6
Table 1.19.7 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
2
1
0
3
, P6
, P6
, P6
, P6
Tentative Specifications REV.A
external pin of CLK
of CTS
(Note 1)
(Note 2)
6
5
7
4
, P7
, P7
, P7
, P7
S
________
pecifications in this manual are tentative and subject to change.
1
2
0
3
)
)
)
)
2
/RTS
RTS output
Serial data output
Programmable I/O port
Transfer clock input
CTS input
Programmable I/O port
Serial data input
________ _______
_______
2
(P7
Function
3
).
2
(P7
2
_______ _______
).
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
Internal/external clock select bit (bit 3 at address 03A0
Port P6
bit 2 at address 03EF
CTS/RTS disable bit (bit 4 at address 03A4
CTS/RTS function select bit (bit 2 at address 03A4
Port P6
bit 3 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
0
2
, P6
, P6
, P6
5
6
4
and P7
and P7
and P7
131
2
1
16
3
16
16
direction register (bits 1 and 5 at address 03EE
direction register (bits 2 and 6 at address 03EE
direction register (bits 0 and 4 at address 03EE
)= “0”
) = “0”
) = “0”
Method of selection
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
16
16
, 03AC
, 03AC
, 03AC
16
16
16
16
16
, 03AC
, 03AC
Mitsubishi microcomputers
, 037C
16
16
, 037C
, 037C
, 03A8
, 03A8
M16C / 62T Group
16
16
16
16)
16
, 037C
, 037C
16
16
) =“0”
) = “1”
= “0”
, 0378
, 0378
16
16
16
16
) = “0”
16
) = “1”
16
16
,
,
,
) = “0”
) = “1”