FEDL2215-01
Semiconductor
ML2215
1
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.
MSB 2SB 3SB 4SB 5SB 6SB 7SB LSB
SD
SI
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
00000000
Code Description
Stop Code
00000001
•
•
User-defined Phrase Codes
Test Codes*
11110111
11111000
•
•
11111111
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
007C8 to 5FFFC
Use-Prohibited Area
5FFFD, 5FFFE, 5FFFF
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OKI [ OKI ELECTRONIC COMPONETS ]
