DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 456

• Manufacturer Part Number: DF2117VT20V
• Description: MCU 16BIT FLASH 3V 160K 144-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VT20V

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: FIFO, I²C, LPC, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 112
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-TQFP, 144-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

15.3.7
SSR is a register containing status flags of the SCI and multiprocessor bits for transfer. TDRE,
RDRF, ORER, PER, and FER can only be cleared. Some bits in SSR have different functions in
normal mode and smart card interface mode.
• Bit Functions in Normal Serial Communication Interface Mode (when SMIF in SCMR = 0)
Rev. 2.00 Sep. 28, 2009 Page 414 of 994
REJ09B0452-0200
Bit
7
6
5
Bit Name
TDRE
RDRF
ORER
Serial Status Register (SSR)
Initial Value
1
0
0
R/W
R/(W)* Transmit Data Register Empty
R/(W)* Receive Data Register Full
R/(W)* Overrun Error
Description
Indicates whether TDR contains transmit data.
[Setting conditions]
•
•
[Clearing condition]
When 0 is written to TDRE after reading TDRE = 1
Indicates that receive data is stored in RDR.
[Setting condition]
When serial reception ends normally and receive
data is transferred from RSR to RDR
[Clearing condition]
When 0 is written to RDRF after reading RDRF = 1
The RDRF flag is not affected and retains its
previous value when the RE bit in SCR is cleared
to 0.
[Setting condition]
When the next serial reception is completed while
RDRF = 1
[Clearing condition]
When 0 is written to ORER after reading ORER =
1
When the TE bit in SCR is 0
When data is transferred from TDR to TSR and
TDR is ready for data write