m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 274

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

11.2.10 CTS/RTS function
When the CTS function is selected, the signal input to the CTS
the transmit conditions.)
When the RTS function is selected, the RTS
Selection of the CTS/RTS function depends on the following bits.
•CTS/RTS function select bit (bit 2 at addresses 34
•CTS/RTS enable bit (bit 4 at addresses 34
•CTS
•CTS
•CTS
Table 11.2.1 lists the selection of the CTS/RTS function.
(1) Clock synchronous serial I/O mode
(2) UART mode
0
1
2
When the receive enable bit (bit 2 at addresses 35
pin outputs “H” level.
When the receive enable bit = “0” (reception disabled), the RTS
receive enable bit to “1,” or by reading the low-order byte of the UARTi receive buffer register.
When the receive enable bit = “1” (continuously reception), the RTS
the low-order byte of the UARTi receive buffer register.
When reception has started, the RTS
When an internal clock is selected (bit 3 at addresses 30
function because the RTS output is undefined.
When the receive enable bit (bit 2 at addresses 35
pin outputs “H” level.
When the receive enable bit = “0” (reception disabled), the RTS
receive enable bit to “1,” or by reading the low-order byte of the UARTi receive buffer register.
When the receive enable bit = “1” (continuously reception), the RTS
the low-order byte of the UARTi receive buffer register.
When reception has started, the RTS
/RTS
/RTS
/RTS
0
1
2
separate select bit (bit 0 at address AC
separate select bit (bit 1 at address AC
separate select bit (bit 4 at address AC
7905 Group User’s Manual Rev.1.0
i
i
16
pin outputs “H” level.
pin outputs “H” level.
i
, 3C
pin outputs the following signals:
16
, B4
16
16
16
16
, 3C
: see Figure 11.2.13.)
: see Figure 11.2.13.)
: see Figure 11.2.13.)
16
16
16
: see Figure 11.2.3.)
, 3D
, 3D
16
, B4
16
16
16
, B5
, B5
16
i
, 38
: see Figure 11.2.3.)
pin must be at “L” level. (This is one of
16
16
16
) = “0” (reception disabled), the RTS
) = “0” (reception disabled), the RTS
i
i
, B0
pin outputs “L” level by setting the
pin outputs “L” level by setting the
i
i
16
pin outputs “L” level by reading
pin outputs “L” level by reading
= “0”), do not select the RTS
11.2 Block description
SERIAL I/O
11-19
i
i