HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 374

• Manufacturer Part Number: HD64F3684FP
• Description: IC H8 MCU FLASH 32K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3684FP

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 18 A/D Converter
18.3
The A/D converter has the following registers.
18.3.1
There are four 16-bit read-only ADDR registers; ADDRA to ADDRD, used to store the results of
A/D conversion. The ADDR registers, which store a conversion result for each analog input
channel, are shown in table 18.2.
The converted 10-bit data is stored in bits 15 to 6. The lower 6 bits are always read as 0.
The data bus width between the CPU and the A/D converter is 8 bits. The upper byte can be read
directly from the CPU, however the lower byte should be read via a temporary register. The
temporary register contents are transferred from the ADDR when the upper byte data is read.
Therefore byte access to ADDR should be done by reading the upper byte first then the lower one.
Word access is also possible. ADDR is initialized to H'0000.
Table 18.2 Analog Input Channels and Corresponding ADDR Registers
Rev.5.00 Nov. 02, 2005 Page 340 of 500
REJ09B0027-0500
Group 0
AN0
AN1
AN2
AN3
Analog Input Channel
A/D data register A (ADDRA)
A/D data register B (ADDRB)
A/D data register C (ADDRC)
A/D data register D (ADDRD)
A/D control/status register (ADCSR)
A/D control register (ADCR)
Register Descriptions
A/D Data Registers A to D (ADDRA to ADDRD)
Group 1
AN4
AN5
AN6
AN7
A/D Data Register to Be Stored Results of A/D Conversion
ADDRA
ADDRB
ADDRC
ADDRD