HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 609

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Table 21.3 A/D Conversion Time (Single Mode)
Item
A/D conversion start delay time
Input sampling time
A/D conversion time
Note:* Values in the table indicate the number of states.
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 $'75* pin. A falling edge at the $'75* 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.
21.5
The A/D converter generates an A/D conversion end interrupt (ADI) at the end of A/D conversion.
Setting the ADIE bit to 1 enables ADI interrupt requests while the ADF bit in ADCSR is set to 1
after A/D conversion is completed.
External Trigger Input Timing
Interrupt Sources
Internal trigger
signal
ADST
ø
Figure 21.4 External Trigger Input Timing
Symbol
t
t
t
D
SPL
CONV
min
10
—
259
CKS = 0
typ
—
63
—
A/D conversion
Rev. 2.0, 08/02, page 569 of 788
17
—
266
max
min
6
—
131
CKS = 1
typ
—
31
—
max
9
—
134