DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 599

• 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: -

(1) Flash Code Control/Status Register (FCCS)
FCCS is configured by bits which request the monitor of the FWE pin state and error occurrence
during programming or erasing flash memory and the download of the on-chip program.
Bit
7
6, 5
4
Bit Name
FWE
⎯
FLER
Initial
Value
1/0
All 0
0
R/W
R
R/W
R
Description
Flash Program Enable
Monitors the signal level input to the FWE pin.
0: A low level signal is input to the FWE pin.
1: A high level signal is input to the FWE pin.
Reserved
The initial value should not be changed.
Flash Memory Error
Indicates an error occurs during programming and
erasing flash memory. When this bit is set to 1, flash
memory enters the error protection state.
When this bit is set to 1, high voltage is applied to the
internal flash memory. To reduce the damage to flash
memory, the reset must be released after the reset
period of 100 μs which is longer than normal.
0: Flash memory operates normally.
[Clearing condition]
•
1: An error occurs during programming/erasing flash
[Setting conditions]
•
•
•
(Hardware protection state)
Programming/erasing protection for flash memory
(error protection) is invalid.
memory.
Programming/erasing protection for flash memory
(error protection) is valid.
By a reset or in hardware standby mode
When an interrupt, such as NMI, occurs during
programming/erasing flash memory.
When the flash memory is read during
programming/erasing flash memory (including a
vector read or an instruction fetch).
When the SLEEP instruction is executed during
programming/erasing flash memory (including
software standby mode)
Rev.2.00 May. 28, 2009 Page 559 of 732
REJ09B0059-0200