R4F24568NVFQV Renesas Electronics America, R4F24568NVFQV Datasheet - Page 330
R4F24568NVFQV
Manufacturer Part Number
R4F24568NVFQV
Description
MCU 128KKB FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of R4F24568NVFQV
Core Processor
H8S/2600
Core Size
16/32-Bit
Speed
32MHz
Connectivity
EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b; 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
-
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Section 6 Bus Controller (BSC)
(7)
(a)
Page 300 of 1392
While the DRMI bit is cleared to 0 in DRACCR, idle cycle insertion after DRAM space access
is disabled. Idle cycle insertion after DRAM space access can be enabled by setting the DRMI
bit to 1. The conditions and number of states of the idle cycle to be inserted are in accordance
with the settings of bits ICIS1, ICIS0, and IDLC in BCR are valid. Figures 6.88 and 6.89 show
examples of idle cycle operation when the DRMI bit is set to 1.
When the DRMI bit is cleared to 0, an idle cycle is not inserted after DRAM space access even
if bits ICIS1 and ICIS0 are set to 1.
Idle Cycle in Case of Normal Space Access after DRAM Space Access
Normal space access after DRAM space read access
UCAS, LCAS
Address bus
Data bus
(Consecutive Reads in Different Areas) (IDLC = 0, RAST = 0, CAST = 0)
RAS
Figure 6.88 Example of Idle Cycle Operation after DRAM Access
RD
φ
T
p
DRAM space read
T
r
T
c1
T
c2
Idle cycle
External address space read
T
i
T
1
T
2
T
H8S/2456, H8S/2456R, H8S/2454 Group
3
DRAM space read
T
i
REJ09B0467-0350 Rev. 3.50
T
c1
T
c2
Jul 07, 2010
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