R5F61665N50FPV Renesas Electronics America, R5F61665N50FPV Datasheet - Page 906

• Manufacturer Part Number: R5F61665N50FPV
• Description: MCU FLASH 512K ROM 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61665N50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 19 Serial Communication Interface (SCI, IrDA, CRC)
19.3.3
TDR is an 8-bit register that stores transmit data. When the SCI detects that TSR is empty, it
transfers the transmit data written in TDR to TSR and starts transmission. The double-buffered
structures of TDR and TSR enable continuous serial transmission. If the next transmit data has
already been written to TDR when one frame of data is transmitted, the SCI transfers the written
data to TSR to continue transmission. Although TDR can be read from or written to by the CPU at
all times, to achieve reliable serial transmission, write transmit data to TDR for only once after
confirming that the TDRE bit in SSR is set to 1.
19.3.4
TSR is a shift register that transmits serial data. To perform serial data transmission, the SCI first
automatically transfers transmit data from TDR to TSR, and then sends the data to the TxD pin.
TSR cannot be directly accessed by the CPU.
19.3.5
SMR is used to set the SCI's serial transfer format and select the baud rate generator clock source.
Some bits in SMR have different functions in normal mode and smart card interface mode.
• When SMIF in SCMR = 0
• When SMIF in SCMR = 1
Rev. 2.00 Oct. 21, 2009 Page 872 of 1454
REJ09B0498-0200
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Transmit Data Register (TDR)
Transmit Shift Register (TSR)
Serial Mode Register (SMR)
R/W
R/W
R/W
C/A
GM
7
1
7
0
7
0
CHR
R/W
R/W
BLK
R/W
6
0
6
0
6
1
R/W
R/W
R/W
PE
PE
5
1
5
0
5
0
R/W
R/W
R/W
O/E
O/E
4
0
4
0
4
1
STOP
BCP1
R/W
R/W
R/W
3
1
3
0
3
0
BCP0
R/W
R/W
R/W
MP
2
0
2
0
2
1
CKS1
CKS1
R/W
R/W
R/W
1
1
1
0
1
0
CKS0
CKS0
R/W
R/W
R/W
0
0
0
0
0
1