R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 239

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24278NVFQU

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, Smart Card, SPI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 64K 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

H8S/2427, H8S/2427R, H8S/2425 Group
7.5.4
When accessing external space, this LSI can extend the bus cycle by inserting one or more wait
states (T
insertion using the WAIT pin.
(1)
From 0 to 7 wait states can be inserted automatically between the T
individual area basis in 3-state access space, according to the settings in WTCRA and WTCRB.
(2)
Setting the WAITE bit to 1 in BCR enables wait input by means of the WAIT pin. When external
space is accessed in this state, a program wait is first inserted in accordance with the settings in
WTCRA and WTCRB. If the WAIT pin is low at the rising edge of φ in the last T
another T
This is useful when inserting seven or more T
be inserted for different external devices. The WAITE bit setting applies to all areas. Figure 7.18
shows an example of wait state insertion timing.
The settings after a reset are: 3-state access, insertion of 7 program wait states, and WAIT input
disabled.
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
Program Wait Insertion
Pin Wait Insertion
w
). There are two ways of inserting wait states: program wait insertion and pin wait
w
Wait Control
state is inserted. If the WAIT pin is held low, T
w
states, or when changing the number of T
w
states are inserted until it goes high.
2
state and T
Section 7 Bus Controller (BSC)
3
state on an
2
or T
Page 209 of 1448
w
state,
w
states to