HD64F2378RVFQ33 Renesas Electronics America, HD64F2378RVFQ33 Datasheet - Page 425
HD64F2378RVFQ33
Manufacturer Part Number
HD64F2378RVFQ33
Description
IC H8S MCU FLASH 512K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of HD64F2378RVFQ33
Core Processor
H8S/2000
Core Size
16-Bit
Speed
33MHz
Connectivity
I²C, IrDA, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
97
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 6x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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However, if the last transfer cycle and a CBR refresh occur simultaneously, note that although the
CBR refresh and the last transfer cycle may be executed consecutively, TEND may also go low in
this case for the refresh cycle.
7.7.5
DREQ pin falling edge detection is performed in synchronization with DMAC internal operations.
The operation is as follows:
[1] Activation request wait state: Waits for detection of a low level on the DREQ pin, and
[2] Transfer wait state: Waits for DMAC data transfer to become possible, and switches to [3].
[3] Activation request disabled state: Waits for detection of a high level on the DREQ pin, and
After DMAC transfer is enabled, a transition is made to [1]. Thus, initial activation after transfer
is enabled is performed on detection of a low level.
switches to [2].
switches to [1].
Internal write signal
Internal read signal
Activation by Falling Edge on DREQ Pin
External address
Figure 7.41 Example in which Low Level Is Not Output at TEND Pin
Internal address
HWR, LWR
TEND
φ
External write by CPU, etc.
Not output
DMA
read
Rev.7.00 Mar. 18, 2009 page 357 of 1136
Section 7 DMA Controller (DMAC)
DMA
write
REJ09B0109-0700
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