DF2218BR24V Renesas Electronics America, DF2218BR24V Datasheet - Page 174

• Manufacturer Part Number: DF2218BR24V
• Description: IC H8S/2218 MCU FLASH 112-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2218BR24V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 24MHz
• Connectivity: SCI, SmartCard, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 6x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-LFBGA
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK2218-SS - KIT DEV H8S/2218 WINDOWS SIDESHW3DK2218 - DEV EVAL KIT H8S/2218
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.3
The following shows the registers of the bus controller.
• Bus width control register (ABWCR)
• Access state control register (ASTCR)
• Wait control register H (WCRH)
• Wait control register L (WCRL)
• Bus control register H (BCRH)
• Bus control register L (BCRL )
• Pin function control register (PFCR)
6.3.1
ABWCR designates each area for either 8-bit access or 16-bit access.
ABWCR sets the data bus width for the external memory space. The bus width for on-chip
memory and internal I/O registers except for the on-chip USB and RTC is fixed regardless of the
settings in ABWCR.
Notes: 1. In modes 5 to 7, initial value of each bit is 1. In mode 4, initial value of each bit is 0.
Rev.7.00 Dec. 24, 2008 Page 118 of 698
REJ09B0074-0700
Bit
7
6
5
4
3
2
1
0
Bit Name
ABW7*
ABW6*
ABW5
ABW4
ABW3
ABW2
ABW1
ABW0
2. The on-chip USB and on-chip RTC are allocated to area 6 and area 7, respectively.
Register Descriptions
Bus Width Control Register (ABWCR)
These bits should be set to 1 in the H8S/2212 Group.
Therefore, these bits should be set to 1.
2
2
Initial Value R/W
1/0*
1/0*
1/0*
1/0*
1/0*
1/0*
1/0*
1/0*
1
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Area 7 to 0 Bus Width Control:
These bits select whether the corresponding area is to
be designated for 8-bit access or 16-bit access.
0: Area n is designated for 16-bit access
1: Area n is designated for 8-bit access
Legend: n = 7 to 0