DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 534
DF2238RTF6
Manufacturer Part Number
DF2238RTF6
Description
MCU 2.2/3V 256K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of DF2238RTF6
Core Processor
H8S/2000
Core Size
16-Bit
Speed
6MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
72
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2238RTF6
HD64F2238RTF6
HD64F2238RTF6
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2238RTF6V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 13 Watchdog Timer (WDT)
13.3.3
RSTCSR controls the generation of the internal reset signal when TCNT overflows, and selects
the type of internal reset signal. RSTCSR is initialized to H'1F by a reset signal from the RES pin,
and not by the WDT internal reset signal caused by overflows.
Note:
Rev. 6.00 Mar. 18, 2010 Page 472 of 982
REJ09B0054-0600
Bit
7
6
5
4 to 0
* Only 0 can be written, to clear the flag.
Reset Control/Status Register (RSTCSR) (only WDT_0)
Bit Name
WOVF
RSTE
RSTS
⎯
Initial
Value
0
0
0
All 1
R/W
R/(W) *
R/W
R/W
⎯
Description
Watchdog Overflow Flag
This bit is set when TCNT overflows in watchdog
timer mode. This bit cannot be set in interval timer
mode, and only 0 can be written, to clear the flag.
[Setting condition]
Set when TCNT overflows (changed from H'FF to
H'00) in watchdog timer mode
[Clearing condition]
Cleared by reading RSTCSR when WOVF = 1,
and then writing 0 to WOVF
Reset Enable
Specifies whether or not a reset signal is
generated in the chip if TCNT overflows during
watchdog timer operation.
0: Reset signal is not generated even if TCNT
1: Reset signal is generated if TCNT overflows
Reset Select
This bit selects the type of the internal reset that is
generated by TCNT overflowing in watchdog timer
mode.
0: Power-on reset
1: Manual reset
Reserved
These bits are always read as 1 and cannot be
modified.
overflows (Though this LSI is not reset, TCNT
and TCSR in WDT are reset)
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