DF2357F20 Renesas Electronics America, DF2357F20 Datasheet - Page 150

• Manufacturer Part Number: DF2357F20
• Description: IC H8S MCU FLASH 5V 128K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2357F20

• 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: 128KB (128K 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

6.2.9
RTCOR is an 8-bit readable/writable register that sets the period for compare match operations with RTCNT.
The values of RTCOR and RTCNT are constantly compared, and if they match, the CMF flag in DRAMCR is set to 1 and
RTCNT is cleared to H'00.
RTCOR is initialized to H'FF by a power-on reset and in hardware standby mode. It is not initialized by a manual reset* or
in software standby mode.
Note: * Manual reset is only supported in the H8S/2357 ZTAT.
Rev.6.00 Oct.28.2004 page 120 of 1016
REJ09B0138-0600H
Bit
Initial value :
R/W
Refresh Time Constant Register (RTCOR)
:
:
R/W
7
1
R/W
6
1
R/W
5
1
R/W
4
1
R/W
3
1
R/W
2
1
R/W
1
1
R/W
0
1