DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 732

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• 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: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 23 ROM
23.1.2
This group on-chip ROM is controlled by the operating mode and register MDCR. The register
configuration is shown in table 23.1.
Table 23.1 ROM Register
Register Name
Mode control register
Note:
23.2
23.2.1
MDCR is an 8-bit read-only register used to set this group operating mode and monitor the current
operating mode.
The EXPE bit is initialized in accordance with the mode pin states by a reset and in hardware
standby mode.
Bit 7—Expanded Mode Enable (EXPE): Sets expanded mode. In mode 1, EXPE is fixed at 1
and cannot be modified. In modes 2 and 3, EXPE has an initial value of 0 and can be read or
written.
Bit 7
EXPE
0
1
Rev. 4.00 Sep 27, 2006 page 686 of 1130
REJ09B0327-0400
Bit
Initial value
Read/Write
Note: * Determined by the MD1 and MD0 pins.
* Lower 16 bits of the address.
Register Configuration
Register Descriptions
Mode Control Register (MDCR)
Description
Single-chip mode selected
Expanded mode selected
(H8S/2148 F-ZTAT A-Mask Version, H8S/2147 F-ZTAT A-Mask Version, H8S/2144 F-ZTAT A-Mask Version)
EXPE
R/W *
—*
7
Abbreviation
MDCR
—
—
6
0
—
—
5
0
R/W
R/W
—
—
4
0
Initial Value
Undefined
Depends on the operating mode
—
—
3
0
—
—
2
0
MDS1
—*
R
1
Address *
H'FFC5
MDS0
—*
R
0