FEDL2215-01

1Semiconductor

ML2215

11/26

FUNCTIONAL DESCRIPTION

1. Specifying a user-defined phrase code for playback

The LSI allows a user to define up to 247 phrases. To playback a user-defined phrase, input a phrase code (phrase

address) in serial order, starting with the MSB, through the SD pin.

Figure 1.1 Timing for Phrase Code Input

When more than 8 SI clocks are input, the first 8-clock data is taken as valid data. Table 1.1 shows phrase codes

for user-defined phrases.

Table 1.1 Phrase Code for User-defined Phrase

MSB to LSB

Code Description

00000000

Stop Code

00000001

•

•

11110111

User-defined Phrase Codes

11111000

•

•

11111111

Test Codes*

Note: * No test codes could be used to represent a user-defined phrase.

2. Use-Prohibited Area in on-chip Mask ROM

As shown in the Table 2.1, the last 3 bytes of on-chip Mask ROM are use-prohibited. Be sure not to use the last 3

bytes when you prepare ROM data using an analyzing tool.

Table 2.1 shows addresses that are prohibited to use, and Figure 2.1 shows the address map of on-chip Mask ROM.

Table 2.1 User’s Data Area and Use-Prohibited Area in on-chip Mask ROM

User’s Data Area

Use-Prohibited Area

007C8 to 5FFFC

5FFFD, 5FFFE, 5FFFF

SD

SI

MSB 2SB

3SB

4SB

5SB

6SB

7SB

LSB