HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1005

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Table 27.3 A/D Conversion Time (Single Mode)
Note: Values in the table are numbers of states (t
27.4.5
The A/D conversion can also be started by the external trigger input. The external trigger input is
enabled at the ADTRG pin when bits TRGE1 and TRGE0 in A/D control register (ADCR) are set
to 1. The falling edge of ADTRG input pin sets the ADST bit in the A/D control/status register
(ADCSR) to 1, and then A/D conversion is started.
Other operations are the same as when the ADST bit is set to 1 by software, regardless of the
conversion mode.
Figure 27.6 shows the timing.
A/D conversion
start delay
Input sampling
time
A/D conversion
time
External trigger signal
External Trigger Input Timing
ADTRG
ADST
Pφ
Symbol
t
t
t
D
SPL
CONV
Figure 27.6
Min.
18

535
CKS1 = 1, CKS0 = 0
Typ.

129

External Trigger Input Timing
Max.
21

545
cyc
) for Pφ.
Min.
10

275
CKS1 = 0, CKS0 = 1
Rev. 3.00
Typ.

65

Max.
13

285
Jan. 18, 2008
A/D converter
Section 27
Min.
6

141
CKS1 = 0, CKS0 = 0
REJ09B0033-0300
Page 943 of 1458
Typ.

33

A/D Converter
Max.
9

151