DF2372RVFQ34V Renesas Electronics America, DF2372RVFQ34V Datasheet - Page 377
DF2372RVFQ34V
Manufacturer Part Number
DF2372RVFQ34V
Description
IC H8S/2372 MCU FLASH 144LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.YR0K42378FC000BA.pdf
(1208 pages)
Specifications of DF2372RVFQ34V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
34MHz
Connectivity
I²C, IrDA, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
256KB (256K 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
External
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
For Use With
YLCDRSK2378 - KIT DEV EVAL H8S/2378 LCDYR0K42378FC000BA - KIT EVAL FOR H8S/2378HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2372RVFQ34V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 377 of 1208
- Download datasheet (8Mb)
7.4.2
If an external request (DREQ pin) is specified as a DMAC activation source, the relevant port
should be set to input mode in advance * . Level sensing or edge sensing can be used for external
requests.
External request operation in normal mode of short address mode or full address mode is
described below.
When edge sensing is selected, a byte or word is transferred each time a high-to-low transition is
detected on the DREQ pin. The next data transfer may not be performed if the next edge is input
before data transfer is completed.
When level sensing is selected, the DMAC stands by for a transfer request while the DREQ pin is
held high. While the DREQ pin is held low, transfers continue in succession, with the bus being
released each time a byte or word is transferred. If the DREQ pin goes high in the middle of a
transfer, the transfer is interrupted and the DMAC stands by for a transfer request.
Note: * If the relevant port is set as an output pin for another function, DMA transfers using the
7.4.3
Auto-request is activated by register setting only, and transfer continues to the end. With auto-
request activation, cycle steal mode or burst mode can be selected.
In cycle steal mode, the DMAC releases the bus to another bus master each time a byte or word is
transferred. DMA and CPU cycles are usually repeated alternately. In burst mode, the DMAC
keeps possession of the bus until the end of the transfer so that transfer is performed continuously.
7.5
7.5.1
Table 7.4 lists the DMAC transfer modes.
Activation by External Request
Activation by Auto-Request
Operation
Transfer Modes
channel in question cannot be guaranteed.
Rev.7.00 Mar. 18, 2009 page 309 of 1136
Section 7 DMA Controller (DMAC)
REJ09B0109-0700
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