DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 973

• Manufacturer Part Number: DF2398F20V
• Description: IC H8S/2300 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398F20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• For Use With: YR0K42378FC000BA - KIT EVAL FOR H8S/2378
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

TCNT—Timer Counter
RSTCSR—Reset Control/Status Register
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
TCNT is an 8-bit readable/writable* up-counter.
Note: * TCNT is write-protected by a password to prevent accidental overwriting.
Note: * Can only be written with 0 for flag clearing.
The method for writing to RSTCSR is different from that for general registers to prevent
accidental overwriting. For details see section 13.2.4, Notes on Register Access.
For details see section 13.2.4, Notes on Register Access.
:
:
:
:
:
:
Watchdog Timer Overflow Flag
R/(W)*
WOVF
0
1
R/W
7
0
7
0
[Clearing condition]
Cleared by reading RSTCSR when WOVF = 1, then writing 0 to WOVF
[Setting condition]
Set when TCNT overflows (changed from H'FF to H'00) during
watchdog timer operation
Note: * The modules H8S/2357 Group are not reset, but TCNT and
RSTE
Reset Enable
R/W
0
1
R/W
6
0
6
0
Reset signal is not generated if TCNT overflows*
Reset signal is generated if TCNT overflows
Note: * Manual reset is not supported in the H8S/2357
TCSR in WDT are reset.
Reset Select
RSTS
0
1
R/W
R/W
5
0
5
0
(F-ZTAT and masked ROM versions) or the H8S/2352,
H8S/2398, H8S/2394, H8S/2392 and H8S/2390.
In these models, only 0 should be written to this bit.
H'FFBC (W), H'FFBD (R)
H'FFBE (W) , H'FFBF (R)
Power-on reset
Manual reset*
R/W
—
—
4
1
4
0
R/W
—
—
3
1
3
0
R/W
—
—
2
1
2
0
Rev.6.00 Oct.28.2004 page 943 of 1016
R/W
—
—
1
1
WDT
1
0
WDT
R/W
—
—
0
1
REJ09B0138-0600H
0
0