
Rev.2.00 Oct 16, 2006
page 97 of 354
REJ09B0340-0200
M30245 Group
2. Serial Interface Special Function
Continued from the previous page
Output an "H" to the SS port on the receiver side IC
Output an "L" to SS port on the receiver side IC
Data logic select bit
0 : No reverse
UARTi transmit interrupt cause select bit
0 : Transmit buffer empty (Tl = 1)
Setting UARTi transmit/receive control register 1 (i=0 to 3)
00
0
Setting UARTi bit rate generator (i = 0 to 3)
Can be set to 0016 to FF16 (Note)
Transmission enabled
Transmit enable bit
1 : Transmission enabled
1
Writing transmit data (Note)
Setting transmission data
Checking the status of UARTi transmit buffer register (i = 0 to 3)
Transmit buffer empty flag
0 : Data present in transmit buffer register
1 : No data present in transmit buffer register
(Writing next transmit data enabled)
Writing next transmit data (Note)
UARTi transmit/receive control register 1
UiC1 [Address 03AD16, 36D16, 033D16, 32D16]
UARTi transmit/receive control register 1
UiC1 [Address 03AD16, 36D16, 033D16, 32D16]
UARTi bit rate generator [Address 03A916, 036916, 033916, 032916,]
UiBRG (i = 0 to 3)
Note: Use MOV instruction to write to this register.
Write to UARTi bit rate generator when transmission/reception is halted.
UART0 transmit buffer register [Address 03AB16, 03AA16] U0TB
UART1 transmit buffer register [Address 036B16, 036A16] U1TB
UART2 transmit buffer register [Address 033B16, 033A16] U2TB
UART3 transmit buffer register [Address 032B16, 032A16] U3TB
Note: Use MOV instruction to write to this register.
UARTi transmit/receive control register 1
UiC1 [Address 03AD16, 36D16, 033D16, 32D16]
UART0 transmit buffer register [Address 03AB16, 03AA16] U0TB
UART1 transmit buffer register [Address 036B16, 036A16] U1TB
UART2 transmit buffer register [Address 033B16, 033A16] U2TB
UART3 transmit buffer register [Address 032B16, 032A16] U3TB
Note: Use MOV instruction to write to this register.
Set to “0” in clock synchronous serial I/O mode.
b7
b0
b7
b0
b7
b0
(b15
(b8)
b7
b0 b7
b0
Start transmission
Setting transmission data
Transmission is complete
b7
b0
(b15)
(b8)
b7
b0 b7
b0
When transmitting continuously
Figure 2.5.10. Set-up procedure of transmission in serial interface special function master mode, without clock delay (2)