R5F61668MZN50FPV Renesas Electronics America, R5F61668MZN50FPV Datasheet - Page 237

• Manufacturer Part Number: R5F61668MZN50FPV
• Description: MCU FLASH 1024K ROM 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61668MZN50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 56K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.2.16
REFCR specifies the refresh type for the DRAM/SDRAM interface.
Bit
6 to 1
0
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Note: * Only 0 can be written to this bit, to clear the flag.
Refresh Control Register (REFCR)
Bit Name
⎯
TRWL
RFSHE
R/(W)*
CMF
R/W
15
0
7
0
Initial
Value
All 0
0
RLW2
CMIE
R/W
R/W
14
0
6
0
R/W
R
R/W
RCW1
RLW1
R/W
R/W
13
0
5
0
Description
Reserved
The initial value should not be changed.
Write-Precharge Delay Control
Specifies the time until the precharge command is
issued after the write command is issued to the
SDRAM. Setting this bit to 1 inserts one wait cycle after
the write command is issued.
0: No wait cycle inserted
1: One wait cycle inserted
RCW0
RLW0
R/W
R/W
12
0
4
0
SLFRF
R/W
11
⎯
R
0
3
0
Rev. 1.00 Jan. 29, 2010 Page 205 of 1380
RTCK2
TPCS2
R/W
R/W
10
0
2
0
Section 9 Bus Controller (BSC)
RTCK1
TPCS1
R/W
R/W
9
0
1
0
REJ09B0596-0100
RTCK0
TPCS0
R/W
R/W
8
0
0
0