DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 311

• 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: -

10.7.3
If a compare-match occurs during the state after an OCRA or OCRB write cycle, the write takes
priority and the compare-match signal is disabled. Figure 10.19 shows the timing for this type of
conflict.
If automatic addition of OCRAR and OCRAF to OCRA is selected, and a compare-match occurs
in the cycle following the OCRA, OCRAR, and OCRAF write cycle, the OCRA, OCRAR, and
OCRAF write takes priority and the compare-match signal is disabled. Consequently, the result of
the automatic addition is not written to OCRA. Figure 10.20 shows the timing for this type of
conflict.
Conflict between OCR Write and Compare-Match
Figure 10.19 Conflict between OCR Write and Compare-Match
φ
Address
Internal write
signal
FRC
OCR
Compare-match
signal
(When Automatic Addition Function is not Used)
Write cycle of OCR
T 1
OCR address
T 2
N
N
Write data
Rev.2.00 May. 28, 2009 Page 271 of 732
M
N + 1
Disabled
REJ09B0059-0200