R5F61668RN50FPV Renesas Electronics America, R5F61668RN50FPV Datasheet - Page 295

• 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: -

9.7.5
The bus cycle can be extended for the byte control SRAM interface by inserting wait cycles (Tw)
in the same way as the basic bus interface.
(1)
From 0 to 7 wait cycles can be inserted automatically between T2 cycle and T3 cycle for the 3-
state access space in area units, according to the settings in WTCRA and WTCRB.
(2)
For 3-state access space, when the WAITE bit in BCR1 is set to 1, the corresponding DDR bit is
cleared to 0, and the ICR bit is set to 1, wait input by means of the WAIT pin is enabled. For
details on DDR and ICR, refer to section 13, I/O Ports.
Figure 9.27 shows an example of wait cycle insertion timing.
Program Wait Insertion
Pin Wait Insertion
Wait Control
Rev. 2.00 Sep. 24, 2008 Page 261 of 1468
Section 9 Bus Controller (BSC)
REJ09B0412-0200