HD6437101 RENESAS [Renesas Technology Corp], HD6437101 Datasheet - Page 377

• Manufacturer Part Number: HD6437101
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Table 11.3 A/D Conversion Time (Single Mode)
Item
A/D conversion
start delay time
Input sampling
time
A/D conversion
time
Note: All values represent the number of states for Pφ.
Table 11.4 A/D Conversion Time (Scan Mode)
CKS1
0
1
11.4.5
The A/D converter can be independently activated by an A/D conversion request from the interval
timer of the MTU or MMT.
To activate the A/D converter by the MTU or MMT, set the A/D trigger select register (ADTSR).
After this register setting has been made, the ADST bit in ADCR is automatically set to 1 when an
A/D conversion request from the interval timer of the MTU or MMT occurs. 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.
11.4.6
A/D conversion can be externally triggered. When the TRGS0 and TRGS1 bits are set to 00 or 01
in ADTSR, external trigger input is enabled at the ADTRG pin. A falling edge of the ADTRG pin
sets the ADST bit to 1 in ADCR, starting A/D conversion. Other operations, in both single and
scan modes, are the same as when the ADST bit has been set to 1 by software. Figure 11.4 shows
the timing.
A/D Converter Activation by MTU or MMT
External Trigger Input Timing
Symbol
t
t
t
D
SPL
CONV
CKS0
0
1
0
1
Min. Typ. Max.
31
—
1024 —
CKS0 = 0
—
256
62
1055
—
CKS1 = 0
Conversion Time (State)
1024 (Fixed)
512 (Fixed)
256 (Fixed)
128 (Fixed)
Min. Typ. Max.
15
—
515
CKS0 = 1
—
128
—
Rev.1.00 Sep. 18, 2008 Page 343 of 522
30
—
530
Min. Typ. Max.
7
—
259
CKS0 = 0
—
64
—
Section 11 A/D Converter
14
—
266
CKS1 = 1
REJ09B0069-0100
Min. Typ. Max.
3
—
131
CKS0 = 1
—
32
—
6
—
134