isd2548x Winbond Electronics Corp America, isd2548x Datasheet - Page 14

• Manufacturer Part Number: isd2548x
• Description: Single-chip, Multiple-messages, Voice Record/playback Device 32-, 40-, 48-, And 64-second Duration
• Manufacturer: Winbond Electronics Corp America

Note: Push-Button Mode can be used in conjunction with modes M0, M1, and M3.
[3]
Playback in Push-Button Mode
If the M1 Operational Mode pin is also HIGH, the just previously written
address.
2. The P/ R pin is taken LOW.
3. The CE pin is pulsed LOW. Recording starts, EOM goes HIGH to indicate an
4. When the CE pin is pulsed LOW. Recording pauses, EOM goes back LOW. The
5. The CE pin is pulsed LOW. Recording starts at the next address after the previous set
6. When the recording sequences are finished, the final CE pulse LOW will end the last
1. The PD pin should be LOW.
2. The P/ R pin is taken HIGH.
3. The CE pin is pulsed LOW. Playback starts, EOM goes HIGH to indicate an operation
4. If the CE pin is pulsed LOW or an EOM marker is encountered during an operation,
5.
6. Playback continues as in steps 4 and 5 until PD is pulsed HIGH or overflow occurs.
7. If in overflow, pulling CE LOW will reset the address pointer and start playback from the
operation in progress.
internal address pointers are not cleared, but the EOM marker is stored in memory to
indicate as the message end. The P/ R pin may be taken HIGH at this time. Any
subsequent CE would start a playback at address 0.
record cycle, leaving a set EOM marker at the message end. Recording may also be
terminated by a HIGH level on PD, which will leave a set EOM marker.
in progress.
the part will pause. The internal address pointers are not cleared, and EOM goes back
LOW. The P/ R pin may be changed at this time. A subsequent record operation would
not reset the address pointers and the recording would begin where playback ended.
indicate an operation in progress.
beginning. After a PD pulse, the part is reset to address 0.
EOM marker. EOM goes back HIGH.
CE is again pulsed LOW. Playback starts where it left off, with EOM going HIGH to
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[3]
EOM
bit is erased, and recording starts at that
ISD2532/40/48/64