R0K572011S000BE Renesas Electronics America, R0K572011S000BE Datasheet - Page 922

• Manufacturer Part Number: R0K572011S000BE
• Description: KIT STARTER FOR SH7201
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572011S000BE

• Contents: CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
• For Use With/related Products: SH7201
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 20 A/D Converter (ADC)
20.4.4
The A/D converter can be independently activated by an A/D conversion request from the external
trigger, MTU2, or TMR. To activate the A/D converter by the external trigger, MTU2, or TMR,
set the A/D trigger enable bits (TRGS[3:0]). After this bit setting has been made, the ADST bit is
automatically set to 1 and A/D conversion is started when an A/D conversion request from the
external trigger, MTU2, or TMR occurs. The channel combination is determined by the CH[2:0]
bits in ADCSR. The timing from setting of the ADST bit until the start of A/D conversion is the
same as when 1 is written to the ADST bit by software.
20.4.5
The A/D converter has a built-in sample-and-hold circuit. The A/D converter samples the analog
input at the A/D conversion start delay time (t
starts conversion. Figure 20.5 shows the A/D conversion timing. Table 20.4 indicates the A/D
conversion time.
As indicated in figure 20.5, the A/D conversion time (t
time(t
conversion time therefore varies within the ranges indicated in table 20.4.
In multi mode and scan mode, the values given in table 20.4 apply to the first conversion. In the
second and subsequent conversions, time is the values given in table 20.5.
Page 894 of 1190
SPL
). The length of t
A/D Converter Activation by External Trigger, MTU2, or TMR
Input Sampling and A/D Conversion Time
D
varies depending on the timing of the write access to ADCSR. The total
D
) after the ADST bit in ADCSR is set to 1, then
CONV
) includes t
D
and the input sampling
R01UH0026EJ0300 Rev. 3.00
SH7201 Group
Sep 24, 2010