HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 186
HD6413007F20
Manufacturer Part Number
HD6413007F20
Description
IC H8 MCU ROMLESS 5V 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.D13007F20V.pdf
(798 pages)
Specifications of HD6413007F20
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
35
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
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6. Bus Controller
Table 6.9
Operating Mode
Modes 1 and 2
(1-Mbyte)
Modes 3 and 4
(16-Mbyte)
Note: n = 2 to 5
RAS Down Mode and RAS Up Mode: With DRAM provided with fast page mode, as long as
accesses are to the same row address, burst operation can be continued without interruption even if
accesses are not consecutive by holding the RAS signal low.
• RAS Down Mode
Rev.5.00 Sep. 12, 2007 Page 156 of 764
REJ09B0396-0500
To select RAS down mode, set the BE and RDM bits to 1 in DRCRA. If access to DRAM
space is interrupted and another space is accessed, the RAS signal is held low during the
access to the other space, and burst access is performed if the row address of the next DRAM
space access is the same as the row address of the previous DRAM space access. Figure 6.21
shows an example of the timing in RAS down mode.
Correspondence between Settings of MXC1 and MXC0 Bits and ABWCR, and
Row Address Compared in Burst Access
MXC1
0
1
0
1
DRCRB
MXC0
0
1
0
1
0
1
0
1
ABWn
ABWCR
0
1
0
1
0
1
⎯
0
1
0
1
0
1
⎯
16 bits
16 bits
16 bits
16 bits
Bus Width
8 bits
16 bits
8 bits
8 bits
⎯
8 bits
16 bits
8 bits
8 bits
⎯
A19 to A9
A19 to A8
A19 to A10
A19 to A9
A19 to A11
A19 to A10
Illegal setting
A23 to A9
A23 to A8
A23 to A10
A23 to A9
A23 to A11
A23 to A10
Illegal setting
Compared Row Address
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