DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 90
DF2437FV
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2437FV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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2.9
2.9.1
The BSET, BCLR, BNOT, BST, and BIST instructions are used to read data in bytes, operate the
data in bit units, and write the result of the bit unit operation in bits again. Therefore, special care
is necessary to use these instructions for the registers and the ports that include write-only bit.
The BCLR instruction can be used to clear the flags in the internal I/O registers to 0. In this time,
if it is obvious that the flag has been set to 1 in the interrupt handler, there is no need to read the
flag beforehand.
Rev.2.00 May. 28, 2009 Page 50 of 732
REJ09B0059-0200
Notes: 1. From any state except hardware standby mode, a transition to the reset state occurs whenever
2. In every state, when the STBY pin becomes low, the hardware standby mode is entered.
3. For details, refer to section 22, Power-Down Modes.
A transition can also be made to the reset state when the watchdog timer overflows.
Usage Note
Usage Notes on Bit-Wise Operation Instructions
Bus-released state
handling state
Reset state
Reset state
Exception
*1
= High
Figure 2.13 State Transitions
External interrupt request
Program execution state
End of bus request
Bus request
= Low
= High,
Hardware standby
Software standby
Power down state
Sleep mode
mode
mode
*2
*3
goes low.
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