HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 467
HD64F7050
Manufacturer Part Number
HD64F7050
Description
32-Bit RISC Microcomputer SuperH RISC engine Family/
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD64F7050.pdf
(841 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F7050SFJ20
Manufacturer:
RENESAS
Quantity:
100
Part Number:
HD64F7050SFJ20
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
Company:
Part Number:
HD64F7050SFJ20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 467 of 841
- Download datasheet (5Mb)
14.3
A/D data registers 0 to 15 (ADDR0 to ADDR15) are 16-bit registers, but they are connected to the
CPU by an 8-bit data bus. Therefore, the upper and lower bytes must be read separately.
To prevent the data being changed between the reads of the upper and lower bytes of an A/D data
register, the lower byte is read via a temporary register (TEMP). The upper byte can be read
directly.
Data is read from an A/D data register 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 performing byte-size reads on 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. If a word-size read is performed on an A/D data register, reading is
performed in upper byte, lower byte order automatically.
Figure 14.2 shows the data flow for access to an A/D data register.
Upper-byte read
Lower-byte read
CPU Interface
Figure 14.2 A/D Data Register Access Operation (Reading H'AA40)
(H'AA)
(H'40)
CPU
CPU
interface
interface
Bus
Bus
Rev. 5.00 Jan 06, 2006 page 447 of 818
ADDRnH
ADDRnH
(H'AA)
(H'AA)
Module data bus
Module data bus
Section 14 A/D Converter
ADDRnL
ADDRnL
TEMP
(H'40)
(H'40)
TEMP
(H'40)
(H'40)
REJ09B0273-0500
Related parts for HD64F7050
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family / SH7641 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet: