r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 489

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r5f21346mnfp

Manufacturer Part Number
r5f21346mnfp
Description
Single-chip Mcus Incorporates The R8c Cpu Core
Manufacturer
Renesas Electronics Corporation.
Datasheet

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Part Number:
r5f21346mnfp#V0
Manufacturer:
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Quantity:
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R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
23.2.6
Notes:
1. When bits SMD2 to SMD0 in the U2MR register are set to 000b (serial interface disabled) or the RE bit in the
2. These error flags are disabled when bits SMD2 to SMD0 in the U2MR register are set to 001b (clock
After Reset
After Reset
b10
b11
b12
b13
b14
b15
Bit
b0
b1
b2
b3
b4
b5
b6
b7
b8
b9
Address 00AFh to 00AEh
U2C1 register is set to 0 (reception disabled), all of bits SUM, PER, FER, and OER are set to 0 (no error). The
SUM bit is set to 0 (no error) when all of bits PER, FER, and OER are set to 0 (no error). Bits PER and FER are
set to 0 by reading the lower byte of the U2RB register.
When setting bits SMD2 to SMD0 in the U2MR register to 000b, set the TE bit in the U2C1 register to 0
(transmission disabled) and the RE bit to 0 (reception disabled).
synchronous serial I/O mode) or to 010b (I
Always read the U2RB register in 16-bit units.
Symbol
Symbol
Bit
Bit
Symbol
MPRB
UART2 Receive Buffer Register (U2RB)
SUM
OER
FER
PER
SUM
b15
b7
X
X
Nothing is assigned. If necessary, set to 0. When read, the content is undefined.
Reserved bit
Overrun error flag
Framing error flag
Parity error flag
Error sum flag
PER
b14
b6
X
X
Bit Name
(1, 2)
(1, 2)
FER
b13
b5
X
X
(1)
(1, 2)
2
C mode). When read, the content is undefined.
OER
b12
b4
X
X
Receive data (D7 to D0)
Receive data (D8)
[When the multiprocessor communication function is
not used]
Receive data (D8)
[When the multiprocessor communication function is
used]
• When the MPRB bit is set to 0, received D0 to D7
• When the MPRB bit is set to 1, received D0 to D7
Set to 0.
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
are data fields.
are ID fields.
b11
b3
X
X
b10
b2
X
X
(1)
Function
b1
b9
X
X
23. Serial Interface (UART2)
MPRB
b0
b8
X
X
Page 457 of 740
R/W
R/W
R
R
R
R
R
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