YLCDRSK2378 Renesas Electronics America, YLCDRSK2378 Datasheet - Page 452

KIT DEV EVAL H8S/2378 LCD

YLCDRSK2378

Manufacturer Part Number
YLCDRSK2378
Description
KIT DEV EVAL H8S/2378 LCD
Manufacturer
Renesas Electronics America
Series
H8®r
Datasheet

Specifications of YLCDRSK2378

Main Purpose
Displays, LCD Controller
Embedded
Yes, MCU, 16-Bit
Utilized Ic / Part
YLCDRSK2378
Primary Attributes
5.7" QVGA, Touch Screen
Secondary Attributes
Source Code on CD, Debugging Requires Emulator Cable E10A USB/JTAG
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Section 8 EXDMA Controller (EXDMAC)
The source address repeat area is specified by bits SARA4 to SARA0 in EDACR, and the
destination address repeat area by bits DARA4 to DARA0 in EDACR. The size of each repeat
area can be specified independently.
When the address register value is the last address in the repeat area and repeat area overflow
occurs, DMA transfer can be temporarily halted and an interrupt request sent to the CPU. If the
SARIE bit in EDACR is set to 1, when the source address register overflows the repeat area, the
IRF bit is set to 1 and the EDA bit cleared to 0 in EDMDR, and transfer is terminated. If EDIE = 1
in EDMDR, an interrupt is requested. If the DARIE bit in EDACR is set to 1, the above applies to
the destination address register.
If the EDA bit in EDMDR is set to 1 during interrupt generation, transfer is resumed. Figure 8.9
illustrates the operation of the repeat area function.
Caution is required when the repeat area overflow interrupt function is used together with block
transfer mode. If transfer is always terminated when repeat area overflow occurs in block transfer
Rev.7.00 Mar. 18, 2009 page 384 of 1136
REJ09B0109-0700
When lower 3 bits (8-byte area) of EDSAR are designated as repeat area
(SARA4 to SARA0 = 3)
Figure 8.9 Example of Repeat Area Function Operation
External memory
H'23FFFE
H'23FFFF
H'240000
H'240001
H'240002
H'240003
H'240004
H'240005
H'240006
H'240007
H'240008
H'240009
:
:
EDSAR values
H'240000
H'240001
H'240002
H'240003
H'240004
H'240005
H'240006
H'240007
Range of
Repeated
Repeat area overflow
interrupt can be
requested

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