HD6417705F133BV Renesas Electronics America, HD6417705F133BV Datasheet - Page 584

• Manufacturer Part Number: HD6417705F133BV
• Description: MPU 3V 0K PB-FREE 208 FP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417705F133BV

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, IrDA, SCI, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 105
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

21.5
The A/D converter generates an interrupt (ADI) at the end of A/D conversion. The ADI interrupt
request is enabled when ADF in ADCSR is set to 1and the ADIE bit in ADCSR is set to 1 after
A/D conversion. The ADI interrupt can activate the direct memory access controller (DMAC) by
setting the ADIE and DMASL bits to 1. Continuous conversion without loads of software is
enabled by reading data that has been converted by the ADI interrupt with DMAC.
When activating DMAC by ADI, the ADF bit in ADCSR is automatically cleared to 0 at DMAC
data transfer.
Table 21.5 A/D Converter Interrupt Source
21.6
The following shows the definitions of A/D conversion accuracy. In the figure, the 10 bits of the
A/D converter have been simplified to 3 bits.
Rev. 2.00, 09/03, page 536 of 690
Name
ADI
Resolution
Digital output code number of the A/D converter
Quantization error
Intrinsic error of the A/D converter and is expressed as 1/2 LSB (figure 21.3)
Offset error
Deviation between analog input voltage and ideal A/D conversion characteristics when the
digital output value changes from the minimum (zero voltage) 0000000000 (H'00; 000 in
figure 21.3) to 0000000001 (H'01; 001 in figure 21.3) (figure 21.4)
Full-scale error
Deviation between analog input voltage and ideal A/D conversion characteristics when the
digital output value changes from the 1111111110 (H'3EF; 110 in figure 21.3) to the maximum
1111111111 (H'3FF; 111 in figure 21.3) (figure 21.4).
Nonlinearity error
Deviation between analog input voltage and ideal A/D conversion characteristics between zero
voltage and full-scale voltage (figure 21.4). Note that it does not include offset, full-scale, or
quantization error.
Absolute accuracy
Deviation between analog and digital input values. Note that it includes offset, full-scale,
quantization, or nonlinearity error.
Interrupts and DMAC Transfer Request
Definitions of A/D Conversion Accuracy
Interrupt source
A/D conversion end
ADF
Interrupt flag
Yes
DMAC activation