HD64F2338VFC25 Renesas Electronics America, HD64F2338VFC25 Datasheet - Page 1078

• Manufacturer Part Number: HD64F2338VFC25
• Description: MCU 3V 256K 144-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of HD64F2338VFC25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 106
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 4x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

DRAMCR—DRAM Control Register
Rev.4.00 Sep. 07, 2007 Page 1046 of 1210
REJ09B0245-0400
Bit
Initial value
Read/Write
:
:
:
Refresh Control
RFSHE
0
1
R/W
7
0
Refresh control is not performed
Refresh control is performed
RAS-CAS Wait
0
1
RCW
R/W
Wait state insertion in CAS-before-RAS refreshing disabled
RAS falls in T
One wait state inserted in CAS-before-RAS refreshing
RAS falls in T
6
0
Refresh Mode
0
1
RMODE
R/W
Self-refreshing is not performed in software standby mode
Self-refreshing is performed in software standby mode
5
0
Rr
Rc1
Compare Match Flag
cycle
0
1
cycle
CMF
[Clearing condition]
When 0 is written to CMF after reading CMF = 1
[Setting condition]
When RTCNT = RTCOR
R/W
4
0
Compare Match Interrupt Enable
0
1
H'FED7
CMIE
Interrupt request (CMI) by CMF flag disabled
Interrupt request (CMI) by CMF flag enabled
R/W
3
0
Refresh Counter Clock Select
0
1
CKS2
R/W
0
1
0
1
2
0
0
1
0
1
0
1
0
1
Count operation disabled
Count uses φ/2
Count uses φ/8
Count uses φ/32
Count uses φ/128
Count uses φ/512
Count uses φ/2048
Count uses φ/4096
CKS1
R/W
1
0
Bus Controller
CKS0
R/W
0
0