HD6432670 Hitachi, HD6432670 Datasheet - Page 769

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Item
A/D conversion
start delay time
Input sampling
time
A/D conversion
time
Note: Values in the table are the number of states.
Table 16.4 A/D Conversion Time (Scan Mode)
CKS1
0
1
CKS1
0
1
16.4.4
A/D conversion can be externally triggered. When the TRGS1 and TRGS0 bits are set to 11 in
ADCR, external trigger input is enabled at the
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 bit ADST has been set to 1 by software. Figure 16.3 shows the
timing.
H8S/2678R Series
H8S/2678 Series
H8S/2678R Series
External Trigger Input Timing
Symbol
t
t
t
D
SPL
CONV
CKS
0
1
0
1
CKS0
0
1
0
1
Min Typ Max
18
—
515 —
CKS0 = 0
—
127 —
33
530
CKS1 = 0
Conversion Time (State)
512 (Fixed)
64 (Fixed)
256 (Fixed)
128 (Fixed)
Conversion Time (State)
512 (Fixed)
256 (Fixed)
128 (Fixed)
64 (Fixed)
$'75*
Min Typ Max
10
—
259 —
CKS0 = 1
—
63
pin. A falling edge at the
17
—
266
Min Typ Max
6
—
131 —
Rev. 2.0, 04/02, page 723 of 906
CKS0 = 0
—
31
9
—
134
CKS1 = 1
$'75*
Min Typ Max
4
—
67
CKS0 = 1
—
15
—
pin sets
5
—
68