FEDL2201-01

1Semiconductor

ML2201–XXX

9/20

FUNCTIONAL DESCRIPTION

Sampling Frequency

You can select a sampling frequency for each phrase address from the following list while you are working on

sound data. Select a sampling frequency that satisfies f

dividing factors as shown in the Table 1 below.

Table 1 Sampling Frequency

Sampling Frequency

At f

Dividing Factor

4.0 kHz

f

5.3 kHz

f

6.4 kHz

f

8.0 kHz

f

10.6 kHz

f

12.8 kHz

f

16.0 kHz

f

Memory Allocation and Playback Time Length

As shown in the Figure 1, the on-chip Mask ROM of ML2201 is partitioned into four areas, Phrase Control Table,

Address Control Table, Test Data area and User’s Data area. The actual data area where user’s sound data can be

stored is 378 Kbit, that is the total on-chip Mask ROM capacity minus 6 Kbit.

Phrase Control Table Area

Address Control Table Area

Test Data Area

User’s Sound Data Area

2 Kbit

2 Kbit

2 Kbit

378 Kbit

Figure 1 On-chip Mask ROM (384 Kbit) Memory Allocation