R5F61663RN50FPV Renesas Electronics America, R5F61663RN50FPV Datasheet - Page 244
R5F61663RN50FPV
Manufacturer Part Number
R5F61663RN50FPV
Description
MCU FLASH 384K ROM 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8SX/1600r
Specifications of R5F61663RN50FPV
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
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
40K 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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5F61663RN50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 9 Bus Controller (BSC)
Rev. 2.00 Sep. 24, 2008 Page 210 of 1468
REJ09B0412-0200
Bit
6
5
Bit Name
RCDM
DDS
Initial
Value
0
0
R/W
R/W
R/W
Description
RAS Down Mode
Selects the RAS signal state while a DRAM access is
halted when a basic bus interface area or an on-chip
I/O register is accessed: keep the RAS signal low (RAS
down mode) and high (RAS up mode).
This bit is effective when BE = 1. Clearing this bit to 0
with RCDM = 1 in RAS down mode cancels the RAS
down mode and the RAS signal goes high.
If the RAS down mode is selected for the SDRAM
interface, the READ/WRIT command is issued without
issuance of the ACTV command when the same row
address is accessed consecutively.
0: RAS up mode when the DRAM/SDRAM is accessed
1: RAS down mode when the DRAM/SDRAM is
DMAC Single Address Transfer Option
Selects whether a DMAC single address transfer
through the DRAM/SDRAM interface is enabled only in
full access mode or is also enabled in fast-page access
mode.
When clearing the BE bit to 0 to disable a burst access
to the DRAM/SDRAM interface, a DMAC single address
transfer is performed in full access mode regardless of
this bit.
This bit does not affect an external access by other bus
masters or a DMAC dual address transfer. Setting this
bit to 1 changes the DACK output timing.
0: DMAC single address transfer through the
1: DMAC single address transfer through the
accessed
DRAM/SDRAM is enabled only in full access mode
DRAM/SDRAM is also enabled in fast-page access
mode
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