HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 154
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
Bit 0⎯Refresh Pin Enable (RFSHE): Enables or disables RFSH pin refresh signal output. If
areas 2 to 5 are not designated as DRAM space, this bit should not be set to 1.
Bit 0
RFSHE
0
1
6.2.8
Bit
Initial value
Read/Write
DRCRB is an 8-bit readable/writable register that selects the number of address multiplex column
address bits for the DRAM interface, the column address strobe output pin, enabling or disabling
of refresh cycle insertion, the number of precharge cycles, enabling or disabling of wait state
insertion between RAS and CAS, and enabling or disabling of wait state insertion in refresh
cycles.
DRCRB is initialized to H'08 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
The settings in this register are invalid when bits DRAS2 to DRAS0 in DRCRA are all 0.
Rev.5.00 Sep. 12, 2007 Page 124 of 764
REJ09B0396-0500
DRAM Control Register B (DRCRB)
MXC1
R/W
Description
RFSH pin refresh signal output disabled
(RFSH pin can be used as input/output port)
RFSH pin refresh signal output enabled
7
0
MXC0
R/W
6
0
CSEL
R/W
5
0
RCYCE
R/W
4
0
⎯
⎯
3
1
TPC
R/W
2
0
RCW
R/W
1
0
(Initial value)
RLW
R/W
0
0
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