DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 142

• 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: -

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