DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 569

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

17.2.2
Enabling or disabling of part of the H8S/2345’s on-chip ROM area can be selected by means of
the EAE bit in BCRL. For details of the other bits in BCRL, see section 6.2.5, Bus Control
Register L (BCRL).
Bit 5—External Address Enable (EAE): Selects whether addresses H'010000 to H'01FFFF are
to be internal addresses or external addresses.
Note:
17.3
The on-chip ROM is connected to the CPU by a 16-bit data bus, and both byte and word data can
be accessed in one state. Even addresses are connected to the upper 8 bits, and odd addresses to
the lower 8 bits. Word data must start at an even address.
The on-chip ROM is enabled and disabled by setting the mode pins (MD
EAE in BCRL. These settings are shown in tables 17.2 and 17.3.
Bit 5
EAE
0
1
Bit
Initial value :
R/W
* Reserved areas should not be accessed.
Bus Control Register L (BCRL)
Operation
Description
Addresses H'010000 to H'01FFFF are in on-chip ROM (H8S/2345).
Addresses H'010000 to H'017FFF are in on-chip ROM and addresses H'018000 to
H'01FFFF are a reserved area (in the H8S/2344).
Addresses H'010000 to H'01FFFF are a reserved area (in the H8S/2343 and
H8S/2341).
Addresses H'010000 to H'01FFFF are external addresses (external expansion mode)
or a reserved area * (single-chip mode).
:
:
BRLE
R/W
7
0
R/W
—
6
0
EAE
R/W
5
1
R/W
—
4
1
Rev. 4.00 Feb 15, 2006 page 543 of 900
R/W
—
3
1
R/W
—
2
1
2
, MD
1
, and MD
REJ09B0291-0400
Section 17 ROM
R/W
—
1
0
(Initial value)
0
) and bit
WAITE
R/W
0
0