DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 30

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 14.5
Figure 14.6
Figure 14.7
Figure 14.8
Figure 14.9
Figure 14.10 TWCNT Write-Increment Conflict...................................................................... 429
Figure 14.11 Write to START Bit during Free-Running Counter Operation............................ 430
Section 15 Watchdog Timer (WDT)
Figure 15.1
Figure 15.2
Figure 15.3
Figure 15.4
Figure 15.5
Figure 15.6
Figure 15.7
Section 16 Serial Communication Interface (SCI)
Figure 16.1
Figure 16.2
Figure 16.3
Figure 16.4
Figure 16.5
Figure 16.6
Figure 16.7
Figure 16.8
Figure 16.9
Figure 16.9
Figure 16.10 Example of Communication Using Multiprocessor Format
Figure 16.11 Sample Multiprocessor Serial Transmission Flowchart....................................... 475
Figure 16.12 Example of SCI Operation in Reception
Figure 16.13 Sample Multiprocessor Serial Reception Flowchart (1) ...................................... 477
Figure 16.13 Sample Multiprocessor Serial Reception Flowchart (2) ...................................... 478
Figure 16.14 Data Format in Clocked Synchronous Communication (LSB-First) ................... 479
Figure 16.15 Sample SCI Initialization Flowchart.................................................................... 480
Figure 16.16 Sample SCI Transmission Operation in Clocked Synchronous Mode................. 482
Figure 16.17 Sample Serial Transmission Flowchart................................................................ 483
Rev.2.00 May. 28, 2009 Page xxviii of xxxviii
REJ09B0059-0200
Count Start Timing for Duty Measurement ......................................................... 426
Input Capture Timing during Duty Measurement................................................ 426
Clear Timing for START Bit when Duty Measurement Ends............................. 427
Set Timing for Duty Measurement End Flag (ENDF) ......................................... 427
Set Timing for OVF Flag..................................................................................... 428
Block Diagram of WDT....................................................................................... 436
Watchdog Timer Mode (RST/NMI = 1) Operation ............................................. 439
Interval Timer Mode Operation ........................................................................... 440
OVF Flag Set Timing........................................................................................... 440
Internal Reset Signal Generation Timing............................................................. 441
Writing to TCNT and TCSR................................................................................ 442
Conflict between TCNT Write and Increment..................................................... 443
Block Diagram of SCI ......................................................................................... 446
Data Format in Asynchronous Communication
(Example with 8-Bit Data, Parity, Two Stop Bits) .............................................. 462
Receive Data Sampling Timing in Asynchronous Mode..................................... 464
Relation between Output Clock and Transmit Data Phase
(Asynchronous Mode) ......................................................................................... 465
Sample SCI Initialization Flowchart.................................................................... 466
Example of Operation in Transmission in Asynchronous Mode
(Example with 8-Bit Data, Parity, One Stop Bit)................................................. 467
Sample Serial Transmission Flowchart................................................................ 468
Example of SCI Operation in Reception
(Example with 8-Bit Data, Parity, One Stop Bit)................................................. 469
Sample Serial Reception Flowchart (1) ............................................................... 471
Sample Serial Reception Flowchart (2) ............................................................... 472
(Transmission of Data H'AA to Receiving Station A)......................................... 474
(Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit) ............................ 476