R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 216

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R4F24278NVFQU

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

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

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Section 7 Bus Controller (BSC)
Note:
Page 186 of 1448
Bit
10
9
8
7 to 4 ⎯
3
2
1
0
Bit Name
RCD1
RCD0
CKSPE*
RDXC1*
RDXC0*
*
Not supported by the H8S/2427 Group and H8S/2425 Group.
0
0
0
All 0
0
0
0
0
Initial Value
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved
This bit can be read from or written to. However,
the write value should always be 0.
RAS-CAS Wait Control
These bits select a wait cycle to be inserted
between the RAS assert cycle and CAS assert
cycle. A 1- to 4-state wait cycle can be inserted.
00: Wait cycle not inserted
01: 1-state wait cycle inserted
10: 2-state wait cycle inserted
11: 3-state wait cycle inserted
Reserved
These bits can be read from or written to.
However, the write value should always be 0.
Clock Suspend Enable
Enables clock suspend mode for extend read data
during DMAC and EXDMAC single address
transfer with the synchronous DRAM interface.
0: Disables clock suspend mode
1: Enables clock suspend mode
Reserved
This bit can be read from or written to. However,
the write value should always be 0.
Read Data Extension Cycle Number Selection
Selects the number of read data extension cycle
(Tsp) insertion state in clock suspend mode.
These bits are valid when the CKSPE bit is set to
1.
00: Inserts 1 state
01: Inserts 2 state
10: Inserts 3 state
11: Inserts 4 state
H8S/2427, H8S/2427R, H8S/2425 Group
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010

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