ISD2560 Datasheet, PDF (14/42 Pages) Winbond – ISD2560

ISD2560/75/90/120
2. The P/ R pin is taken LOW.
3. The CE pin is pulsed LOW. Recording starts, EOM goes HIGH to indicate an
operation in progress.
4. When the CE pin is pulsed LOW. Recording pauses, EOM goes back LOW. The
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.
5. The CE pin is pulsed LOW. Recording starts at the next address after the previous set
EOM marker. EOM goes back HIGH.^[3]
6. When the recording sequences are finished, the final CE pulse LOW will end the last
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.
Playback in Push-Button Mode
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
in progress.
4. If the CE pin is pulsed LOW or an EOM marker is encountered during an operation,
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.
5. CE is again pulsed LOW. Playback starts where it left off, with EOM going HIGH to
indicate an operation in progress.
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
beginning. After a PD pulse, the part is reset to address 0.
Note: Push-Button Mode can be used in conjunction with modes M0, M1, and M3.
[3] _{If the M1 Operational Mode pin is also HIGH, the just previously written EOM bit is erased, and recording starts at that}
address.
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