HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 232

• Manufacturer Part Number: HD64F38024DV
• Description: IC H8/SLP MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of HD64F38024DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

int close(int fileno)
Description
Return value
Parameters
int read(int fileno, char *buf, unsigned int count)
Description
Return value
Parameters
218
The file number obtained using the open routine is passed as an parameter.
The file management information area set using the open routine should be
released to enable reuse. Also, when output file buffering is performed in
low-level interface routines, the buffer contents should be kicked out to the
actual file.
When the file is closed successfully, 0 is returned; if the close operation fails,
1 is returned.
Normal:
Error:
fileno: File number of the file to be closed
Data is read from the file specified by the first parameter (fileno) to the area
in memory specified by the second parameter (buf). The number of bytes of
data to be read is specified by the third parameter (count).
When the end of the file is reached, only a number of bytes equal to or fewer
than count bytes can be read.
The position for file reading/writing advances by the number of bytes read.
When reading is performed successfully, the actual number of bytes read is
returned; if the read operation fails, -1 is returned.
Normal:
Error:
fileno
buf
count
0
-1
Actual number of bytes read
-1
File number of the file to be read
Memory area in which to store read data
Number of bytes to read
Closes file
Reads data