DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 142
DF3052BX25V
Manufacturer Part Number
DF3052BX25V
Description
MCU 5V 512K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3052BX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 6 Bus Controller
6.1.4
Table 6.2 summarizes the bus controller’s registers.
Table 6.2
Address *
H'FFEC
H'FFED
H'FFEE
H'FFEF
H'FFF3
H'FF5F
Note: * Lower 16 bits of the address.
6.2
6.2.1
ABWCR is an 8-bit readable/writable register that selects 8-bit or 16-bit access for each area.
Bit
Initial
value
Read/Write
When ABWCR contains H'FF (selecting 8-bit access for all areas), the chip operates in 8-bit bus
mode: the upper data bus (D
bit is cleared to 0 in ABWCR, the chip operates in 16-bit bus mode with a 16-bit data bus (D
D
mode. In modes 2 and 4 ABWCR is initialized to H'00 by a reset and in hardware standby mode.
ABWCR is not initialized in software standby mode.
Rev. 3.00 Mar 21, 2006 page 112 of 814
REJ09B0302-0300
0
). In modes 1, 3, 5, 6, and 7 ABWCR is initialized to H'FF by a reset and in hardware standby
Modes 1, 3, 5, 6, 7
Modes 2, 4
Register Configuration
Register Descriptions
Bus Width Control Register (ABWCR)
Bus Controller Registers
Name
Bus width control register
Access state control register
Wait control register
Wait state controller enable
register
Bus release control register
Chip select control register
ABW7
R/W
7
1
0
15
to D
ABW6
R/W
8
) is valid, and port 4 is an input/output port. When at least one
6
1
0
Bits selecting bus width for each area
ABW5
R/W
5
1
0
ASTCR
BRCR
Abbreviation
ABWCR
WCR
WCER
CSCR
ABW4
R/W
4
1
0
ABW3
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
3
1
0
ABW2
R/W
H'FF
H'F3
H'FE
H'0F
Modes
1, 3, 5, 6
H'FF
H'FF
2
1
0
Initial Value
ABW1
R/W
1
1
0
Modes
2, 4, 7
H'00
H'FF
H'F3
H'FF
H'FE
H'0F
ABW0
R/W
15
0
1
0
to
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