R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 527
R4F24278NVFQU
Manufacturer Part Number
R4F24278NVFQU
Description
MCU 512K/48K 2.7-5.5V 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24278NVFQU.pdf
(1482 pages)
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
Available stocks
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H8S/2427, H8S/2427R, H8S/2425 Group
9.6
(1)
Except for clearing the EDA bit to 0 in EDMDR, settings should not be changed for a channel in
operation (including the transfer standby state). Transfer must be disabled before changing a
setting for an operational channel.
(2)
When the MSTP14 bit is set to 1 in MSTPCRH, the EXDMAC clock stops and the EXDMAC
enters the module stop state. However, 1 cannot be written to the MSTP14 bit when any of the
EXDMAC’s channels is enabled for transfer, or when an interrupt is being requested. Before
setting the MSTP14 bit, first clear the EDA bit in EDMDR to 0, then clear the IRF or EDIE bit in
EDMDR to 0.
When the EXDMAC clock stops, EXDMAC registers can no longer be accessed. The following
EXDMAC register settings remain valid in the module stop state, and so should be changed, if
necessary, before making the module stop transition.
• ETENDE = 1 in EDMDR (ETEND pin enable)
• EDRAKE = 1 in EDMDR (EDRAK pin enable)
• AMS = 1 in EDMDR (EDACK pin enable)
(3)
Falling edge sensing on the EDREQ pin is performed in synchronization with EXDMAC internal
operations, as indicated below.
[1] Activation request standby state: Waits for low level sensing on EDREQ pin, then goes to [2].
[2] Transfer standby state: Waits for EXDMAC data transfer to become possible, then goes to [3].
[3] Activation request disabled state: Waits for high level sensing on EDREQ pin, then goes to [1].
After EXDMAC transfer is enabled, the EXDMAC goes to state [1], so low level sensing is used
for the initial activation after transfer is enabled.
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
EXDMAC Register Access during Operation
Module Stop State
EDREQ Pin Falling Edge Activation
Usage Notes
Section 9 EXDMA Controller (EXDMAC)
Page 497 of 1448
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