DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 564

• 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: -

(4)
Figure 17.9 shows an example of the data transmission suspension flowchart.
Rev. 2.00 Sep. 28, 2009 Page 522 of 994
REJ09B0452-0200
Suspension of Data Transmission
Suspend data write to transmit FIFO
Set XMITFRST bit in FFCR to 1
Modem status change interrupt
Prepare for retransmission
Read DCTS flag in FMSR
Figure 17.9 Example of Data Transmission Suspension Flowchart
(Transmission flow)
DCTS = 1
Yes
(Other processing)
No
[ 1 ]
[ 2 ]
[ 3 ]
[ 4 ]
[1] Read the DCTS flag in FMSR in the modem
[2] Suspend data write to the transmit FIFO.
[3] Set the XMITFRST bit in FFCR to 1.
[4] Prepare for retransmission of data and go to
status change interrupt processing routine.
If the DCTS flag is set to 1, the transmission
suspension processing starts.
the transmission flow.