m30262f8gp Renesas Electronics Corporation., m30262f8gp Datasheet - Page 138

• Manufacturer Part Number: m30262f8gp
• Description: Renesas 16-bit Cmos Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

Clock Asynchronous Serial I/O (UART) Mode
132
Table 1.15.10. Input/output pin functions in UART mode
Table 1.15.11. P6
Note: In addition to this, set the U0C0 register’s CRD bit to “0” (CTS
RxDi
(P6
CLKi
(P6
TxDi
(P6
CTSi/RTSi
(P6
Pin name
Pin function
P6
CTS
RTS
CTS
Table 1.15.10 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.)
2
1
3
0
, P6
, P6
, P6
, P6
4
enabled) and the U0C0 register’s CRS bit to “1” (RTS
0
1
1
5
6
4
7
, P7
(Note)
, P7
, P7
, P7
Preliminary Specifications Rev. 0.9
1
2
0
3
)
)
)
)
Specifications in this manual are tentative and subject to change.
RTS output
Serial data output
Programmable I/O port
Transfer clock input
CTS input
Programmable I/O port
Serial data input
4
CRD
U1C0 register
pin function in UART mode
1
0
0
0
Function
CRS
0
1
0
Internal/external clock select bit (bit 3 of address 03A0
Internal/external clock select bit (bit 3 at address 03A0
Port P6
(Do not use external for UART2)
CTS/RTS disable bit (bit 4 of address 03A4
Port P6
bit 1 of address 03EF
(Can be used as an input port when performing transmission only)
CTS/RTS disable bit (bit 4 of address 03A4
CTS/RTS function select bit (bit 2 of address 03A4
Port P6
bit 3 at address 03EF
CTS/RTS disable bit (bit 4 of address 03A4
CTS/RTS function select bit (bit 2 of address 03A4
RCSP
Renesas Technology Corp.
UCON register
1
0
0
0
Bit set value
1
2
0
, P6
, P6
, P6
CLKMD1
5
4
6
and P7
and P7
and P7
0
0
0
0
1
2
3
16
16
direction register (bits 1 and 5 of address 03EE
direction register (bits 2 and 6 of address 03EE
direction register (bits 0 and 4 of address 03EE
)= 0
) = 0
0
Input: 0, Output: 1
selected).
Method of selection
PD6 register
0
PD6_4
0
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
/RTS
0
0
16
16
16
, 03AC
, 03AC
, 03AC
16
16
16
16
16
, 03AC
, 03AC
, 037C
16
16
, 037C
, 037C
, 03A8
, 03A8
16
16
M16C/26 Group
16
16
16)
, 037C
, 037C
16
16
) = 1
) = 0
= 0
, 0378
, 0378
16
16
16
16
) = 0
16
) = 1
16
16
,
) = 0
,
) = 0
) = 1