m30262f8gp Renesas Electronics Corporation., m30262f8gp Datasheet - Page 132

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

Clock Synchronous Serial I/O Mode
126
Figure 1.15.15. The transfer clock output from the multiple pins function usage
Figure 1.15.16. Serial data logic switch timing
(c) Transfer clock output from multiple pins function (UART1)
(d) Continuous receive mode
(e) Serial data logic switch function (UART2)
This function allows the setting two transfer clock output pins and choosing one of the two to output a
clock by using the CLK and CLKS select bit (bits 4 and 5 at address 03B0
The multiple pins function is valid only when the internal clock is selected for UART1.
If the continuous receive mode enable bit (bits 2 and 3 at address 03B0
set to “1”, the unit is placed in continuous receive mode. In this mode, when the receive buffer register
is read out, the SIO simultaneously goes to a receive enable state without having to write dummy data
to the transmit buffer register back again.
When the data logic select bit (bit6 at address 037D
reading from receive buffer register, data is reversed. Figure 1.15.16 shows the example of serial data
logic switch timing.
Preliminary Specifications Rev. 0.9
Ä When LSB first
Specifications in this manual are tentative and subject to change.
Transfer clock
(no reverse)
Note: This applies when the internal clock is selected and transmission
(reverse)
Microcomputer
TxD
TxD
is performed only in clock synchronous serial I/O mode.
CLKS
2
2
CLK
T
X
H
H
H
L
L
L
D
1
1
1
(P6
(P6
(P6
7
4
5
)
)
)
D0
D0
Renesas Technology Corp.
D1
D1
D2
D2
IN
CLK
D3
D3
16
D4
D4
) = “1”, and writing to transmit buffer register or
D5
D5
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
D6
D6
D7
D7
IN
CLK
16
, bit 5 at address 037D
16
). (See Figure 1.15.15.)
M16C/26 Group
16
) is