h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 649

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Table 21.3 A/D Conversion Time (Single Mode)
Note:
21.4.4
A/D conversion can be externally triggered. When the TRGS1 and TRGS0 bits are set to B’11 in
ADCR, external trigger input is enabled at the ADTRG pin. A falling edge at the ADTRG pin sets
the ADST bit to 1 in ADCSR, 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 21.4 shows the
timing.
Item
A/D conversion start delay time
Input sampling time
A/D conversion time
* Values in the table indicate the number of states.
External Trigger Input Timing
Internal trigger
ADTRG
signal
ADST
Figure 21.4 External Trigger Input Timing
Symbol
t
t
t
D
SPL
CONV
min
10
—
259
CKS = 0
typ
—
63
—
Rev. 3.00 Mar 21, 2006 page 595 of 788
A/D conversion
max
17
—
266
Section 21 A/D Converter
min
6
—
131
REJ09B0300-0300
CKS = 1
typ
—
31
—
max
9
—
134