ISD2100 Nuvoton Technology, ISD2100 Datasheet - Page 11

• Manufacturer Part Number: ISD2100
• Description: Digital ChipCorder
• Manufacturer: Nuvoton Technology

The ISD2100 GPIO flexibility allows the user to configure the device to triggers a voice macro in many
different combinations for a push button application. Below is some possible configuration of the GPIO
pins using Voice trigger macros?
A high to low trigger on any GPIO 0~ 5 will start to play Voice Macro 3, 4, 5, 6 and back to Voice
Macro 3. Each Voice Macro points directly or indirectly to voice prompt One, Two, Three, Four.
A single trigger on any GPIO 0~ 5 will loop through several messages until it is interrupted by another
trigger to stop playback, the device goes to power down after.
A single trigger on any GPIO 0~ 5 will sequence through several messages until all messages are
played. The playback cannot be interrupted by another trigger on any GPIO 0~ 5 to stop playback.
A single trigger on any GPIO 0~ 5 will sequence through several messages with pause in between
each message. A 256ms play silence added in between each message to create a short pause for
natural sound. All messages are played in a loop indefinitely until another trigger on any GPIO 0~ 5 to
stop playback.
A Level Hold on any GPIO 0~ 5 will sequence through several messages with pause in between each
message. A 32ms play silence added in between each message to create a very short pause for
natural sound. Playback stops when GPOI is released or all messages are played.
A Level Hold on any GPIO 0~ 5 will loop through several messages with pause in between each
message. A 32ms play silence added in between each message to create a very short pause for
natural sound. Playback stops when GPOI is released or interrupted or by another GPIO trigger.
1. Single Hi-Low trigger sequence through messages
2. Single Hi-Low trigger Loop unless interrupted by another Trigger
3. Single Hi-Low trigger through messages uninterruptable by another Trigger
4. Single Hi-Low trigger sequences through messages with silence (pause) in between
5. Level Hold trigger sequence through messages interruptible
6. Level Hold trigger Loop through messages interruptible
each message.
8.1.3
GPIO Voice Trigger Macros:
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ISD2100 DATASHEET
Publication Release Feb 9, 2010
Revision 0.51