R4F24568NVFQV Renesas Electronics America, R4F24568NVFQV Datasheet - Page 333
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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H8S/2456, H8S/2456R, H8S/2454 Group
(a)
REJ09B0467-0350 Rev. 3.50
Jul 07, 2010
Figure 6.91 Example of Idle Cycle Operation after Continuous Synchronous DRAM Space
Precharge-sel
DQMU, DQML
Address bus
While the DRMI bit is cleared to 0 in DRACCR, idle cycle insertion after continuous
synchronous DRAM space read access is disabled. Idle cycle insertion after continuous
synchronous DRAM space read 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 RCR. Figure 6.91 shows an example 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 continuous synchronous DRAM space read access even if bits ICIS1 and
ICIS0 are set to 1.
Normal space access after a continuous synchronous DRAM space read access
Data bus
CKE
CAS
RAS
WE
RD
Read Access (Read between Different Area) (IDLC = 0, CAS Latency 2)
φ
PALL ACTV READ
Column
address
T
p
Continuous synchronous
DRAM space read
address
address
Row
Row
T
r
T
Column address 1
c1
T
cl
T
c2
Idle cycle
High
T
i
External space read
External address
External address
T
1
NOP
T
2
T
3
Continuous synchronous
DRAM space read
Section 6 Bus Controller (BSC)
T
i
Column address 2
T
c1
READ
T
Page 303 of 1392
Cl
NOP
T
c2
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