R5F61662N50FPV Renesas Electronics America, R5F61662N50FPV Datasheet - Page 274

• Manufacturer Part Number: R5F61662N50FPV
• Description: MCU 24KB FLASH 384K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61662N50FPV

• 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: -

Section 8 Bus Controller (BSC)
(5)
A cycle in which an external space is not accessed due to internal operations is called an external
NOP cycle. Even when an external NOP cycle occurs between consecutive external bus cycles, an
idle cycle can be inserted. In this case, the number of external NOP cycles is included in the
number of idle cycles to be inserted.
Figure 8.41 shows an example of external NOP and idle cycle insertion.
Rev. 2.00 Sep. 16, 2009 Page 244 of 1036
REJ09B0414-0200
Bφ
Address bus
CS (area A)
CS (area B)
RD
Data bus
External NOP Cycles and Idle Cycles
(Condition: Number of idle cycles to be inserted when different reads continue: 4 cycles)
T
1
Preceding bus cycle
T
2
Figure 8.41 Idle Cycle Insertion Example
T
pw
T
3
including no external access cycles (NOP)
Specified number of idle cycles or more
No external access
(NOP)
(remaining)
T
Idle cycle
i
T
i
T
1
Following bus cycle
T
2
T
pw
T
3