m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 97

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.5.2. Serial interface special function-related registers (1)
UARTi receive buffer register (i= 0 to 3)
b15
(b7)
UARTi transmit buffer register (i= 0 to 3) (Note)
b15
(b7)
(b0)
(b0)
b8
b8
b7
b7
page 88 of 354
b0
b0
Note 1: Always write “0”.
Note 2: Bits 15 to 12 are set to “0000
Bit Symbol
Bit Symbol
Note: Use MOV instruction to write to this register.
OER
SUM
FER
PER
ABT
Symbol
U0TB
U1TB
U2TB
U3TB
addresses 03A8
bit is set to “0”. Bit 15 is set to “0” when all of bits 14 to 12 are set to “0”.
Bits 14 and 13 are also set to “0” when the lower byte of the UARTi receive buffer
register (addresses 03AE
Symbol
U0RB
U1RB
U2RB
U3RB
(clock synchronous serial I/O mode)
Parity error flag
(Note 2)
Overrun error flag
(Note 2)
Framing error flag
(Note 2)
Nothing is assigned. Write “0” when writing to these bits.
The values are indeterminate when read.
Error sum flag
(Note 2)
Arbitration lost
detecting flag (Note 1)
Transmit data
Nothing is assigned. Write “0” when writing to these bits.
The values are indeterminate when read.
Bit Name
16
, 0368
Function
03AB
036B
033B
032B
03AF
036F
033F
032F
Address
Address
16
16
16
16
16
16
16
16
16
16
, 0338
, 036A
, 033A
, 032A
, 03AA
, 036E
, 036E
, 033E
, 032E
, 03AE
2
” when the serial I/O mode select bit (bits 0 to 2 at
Receive data
0 : Not detected
1 : Detected
0 : No overrun error
1 : Overrun error
Invalid
Invalid
Invalid
(clock synchronous
16
serial I/O mode)
16
16
16
16
16
16
16
16
, 0328
16
, 033E
Function
16
Transmit data
16
Transmit data (9th bit)
) are set to “000
, 032E
2. Serial Interface Special Function
Indeterminate
Indeterminate
Indeterminate
Indeterminate
16
When reset
Indeterminate
Indeterminate
Indeterminate
Indeterminate
(UART mode)
When reset
) is read.
Receive data
Receive data (9th bit)
Invalid
0 : No overrun error
1 : Overrun error
0 : No framing error
1 : Framing error
0 : No parity error
1 : Parity error
0 : No error
1 : Error
Function
(UART mode)
2
Function
” or the receive enable
R W
R W