D12674RVFQ33D Renesas Electronics America, D12674RVFQ33D Datasheet - Page 725

• Manufacturer Part Number: D12674RVFQ33D
• Description: MCU 3V 0K I-TEMP 144-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of D12674RVFQ33D

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: IrDA, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412674RVFQ33D; HD6412674RVFQ33D

15.3.7
SSR is a register containing status flags of the SCI and multiprocessor bits for transfer. 1 cannot
be written to flags TDRE, RDRF, ORER, PER, and FER; they can only be cleared. Some bit
functions of SSR differ in normal serial communication interface mode and Smart Card interface
mode.
Normal Serial Communication Interface Mode (When SMIF in SCMR is 0)
Bit
7
6
Bit Name
TDRE
RDRF
Serial Status Register (SSR)
Initial Value
1
0
R/W
R/(W) *
R/(W) *
Section 15 Serial Communication Interface (SCI, IrDA)
Description
Transmit Data Register Empty
Indicates whether TDR contains transmit data.
[Setting conditions]
[Clearing conditions]
Receive Data Register Full
Indicates that the received data is stored in RDR.
[Setting condition]
When serial reception ends normally and receive
data is transferred from RSR to RDR
[Clearing conditions]
The RDRF flag is not affected and retains their
previous values when the RE bit in SCR is cleared
to 0.
When the TE bit in SCR is 0
When data is transferred from TDR to TSR
When 0 is written to TDRE after reading TDRE
= 1
When the DMAC or DTC is activated by a TXI
interrupt request and transfers data to TDR
When 0 is written to RDRF after reading
RDRF = 1
When the DMAC or DTC is activated by an
RXI interrupt and transferred data from RDR
Rev. 3.00 Mar 17, 2006 page 673 of 926
REJ09B0283-0300