DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 559

MCU 5V 512K 100-TQFP

DF3052BX25V

Manufacturer Part Number
DF3052BX25V
Description
MCU 5V 512K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheets

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
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Bit 0—Reserved: Do not set to 1.
15.3
ADDRA to ADDRD are 16-bit registers, but they are connected to the CPU by an 8-bit data bus.
Therefore, although the upper byte can be be accessed directly by the CPU, the lower byte is read
through an 8-bit temporary register (TEMP).
An A/D data register is read as follows. When the upper byte is read, the upper-byte value is
transferred directly to the CPU and the lower-byte value is transferred into TEMP. Next, when the
lower byte is read, the TEMP contents are transferred to the CPU.
When reading an A/D data register, always read the upper byte before the lower byte. It is possible
to read only the upper byte, but if only the lower byte is read, incorrect data may be obtained.
Figure 15.2 shows the data flow for access to an A/D data register.
CPU Interface
Figure 15.2 A/D Data Register Access Operation (Reading H'AA40)
Upper-byte read
Lower-byte read
CPU
(H'AA)
CPU
(H'40)
Bus interface
Bus interface
ADDRnH
ADDRnH
(H'AA)
(H'AA)
Rev. 3.00 Mar 21, 2006 page 529 of 814
ADDRnL
ADDRnL
(H'40)
(H'40)
TEMP
(H'40)
TEMP
(H'40)
Module data bus
Module data bus
Section 15 A/D Converter
(n = A to D)
(n = A to D)
REJ09B0302-0300

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