DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 204

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

Section 6 Bus Controller
Table 6.3
ABW
0
1
Note:
6.3.2
The initial state of the external space is basic bus interface, three-state access space. In ROM-
enabled expanded mode, the space excluding the on-chip ROM, on-chip RAM, and internal I/O
registers is external space. The on-chip RAM is enabled when the RAME bit in the system control
register (SYSCR) is set to 1; when the RAME bit is cleared to 0, the on-chip RAM is disabled and
the corresponding space becomes external space.
6.3.3
The initial state of the external memory space is basic bus interface, three-state access space. In
ROM-disabled expanded mode, the space excluding the on-chip RAM and internal I/O registers is
external space. In ROM-enabled expanded mode, the space excluding the on-chip ROM, on-chip
RAM, and internal I/O registers is external space. The on-chip RAM is enabled when the RAME
bit in the system control register (SYSCR) is set to 1; when the RAME bit is cleared to 0, the on-
chip RAM is disabled and the corresponding space becomes external space.
Rev. 4.00 Sep 27, 2006 page 158 of 1130
REJ09B0327-0400
* Except when WMS1 = 0 and WMS0 = 1
AST
0
1
0
1
Advanced Mode
Normal Mode
Bus Specifications for Each Area (Basic Bus Interface)
WMS1 WMS0 WC1
—
0
—*
—
0
—*
—
1
—*
—
1
—*
—
—
0
1
—
—
0
1
WC0
—
—
0
1
0
1
—
—
0
1
0
1
Bus Specifications (Basic Bus Interface)
Bus Width
16
16
8
8
Access
States
2
3
3
2
3
3
Program
Wait States
0
0
0
1
2
3
0
0
0
1
2
3