YLCDRSK2378 Renesas Electronics America, YLCDRSK2378 Datasheet - Page 308
YLCDRSK2378
Manufacturer Part Number
YLCDRSK2378
Description
KIT DEV EVAL H8S/2378 LCD
Manufacturer
Renesas Electronics America
Series
H8®r
Datasheet
1.YR0K42378FC000BA.pdf
(1208 pages)
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
- Current page: 308 of 1208
- Download datasheet (8Mb)
Section 6 Bus Controller (BSC)
6.7.14
Mode Register Setting of Synchronous DRAM
To use synchronous DRAM, mode must be set after power-on. To set mode, set the RMTS2 to
RMTS0 bits in DRAMCR to H'5 and enable the synchronous DRAM mode register setting. After
that, access the continuous synchronous DRAM space in bytes. When the value to be set in the
synchronous DRAM mode register is X, value X is set in the synchronous DRAM mode register
by writing to the continuous synchronous DRAM space of address H'400000 + X for 8-bit bus
configuration synchronous DRAM and by writing to the continuous synchronous DRAM space of
address H'400000 + 2X for 16-bit bus configuration synchronous DRAM.
The value of the address signal is fetched at the issuance time of the MRS command as the setting
value of the mode register in the synchronous DRAM. Mode of burst read/burst write in the
synchronous DRAM is not supported by this LSI. For setting the mode register of the
synchronous DRAM, set the burst read/single write with the burst length of 1. Figure 6.59 shows
the setting timing of the mode in the synchronous DRAM.
T
T
T
T
p
r
c1
c2
φ
SDRAMφ
Address bus
Mode setting value
Mode setting value
Precharge-sel
RAS
CAS
WE
CKE
High
PALL
NOP
MRS
NOP
Figure 6.59 Synchronous DRAM Mode Setting Timing
Rev.7.00 Mar. 18, 2009 page 240 of 1136
REJ09B0109-0700
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