R5F61668RN50FPV Renesas Electronics America, R5F61668RN50FPV Datasheet - Page 378

• Manufacturer Part Number: R5F61668RN50FPV
• Description: IC H8SX/1668 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61668RN50FPV

• 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
• For Use With: R0K561668S000BE - KIT STARTER FOR H8SX/1668R0K561664S001BE - KIT STARTER FOR H8SX/1651HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 9 Bus Controller (BSC)
9.11.16 EXDMAC Cluster Transfer
Using an EXDMAC cluster transfer mode, data can be read from or written to consecutively. For
details, see section 11, EXDMA Controller (EXDMAC).
Figures 9.91 and 9.92 show a read/write timing using a cluster transfer.
For 1-cycle read or write, set the BE bit in DRAMCR to 1, clear the TRWL bit in SDCR to 0, and
set the CAS latency to 2. During a read cycle, the clock suspend mode cannot be used.
Do not change the bus controller register settings during a cluster transfer.
Rev. 2.00 Sep. 24, 2008 Page 344 of 1468
REJ09B0412-0200
Figure 9.90 Output Timing Example of DACK and EDACK when DKC = 1 or EDKC = 1
DACK or EDACK
Precharge-sel
Address bus
D15 to D8
SDRAMφ
D7 to D0
and DDS = 0 or EDDS = 0 (Write)
DQMLU
DQMLL
RD/WR
RAS
CAS
CKE
WE
CS
BS
Row address
PALL
T
p
ACTV
address
Row
T
r
High
Cloumn address
NOP
T
c1
WRIT
T
c2