msm7630 Oki Semiconductor, msm7630 Datasheet - Page 63

• Manufacturer Part Number: msm7630
• Description: Universal Speech Processor
• Manufacturer: Oki Semiconductor

¡ Semiconductor
2.5 Interrupts
• Interrupts
• Interrupt enable/disable
• Interrupt requests
The SIO is the source of the following interrupts.
- Receive error interrupt
- Receive buffer full interrupt
- Transmit buffer empty interrupt
- Transmit end interrupt
- Modem status interrupt
Each interrupt source can be independently enabled or disabled. Also, all interrupts can be
disabled at once.
Whenever any of the five interrupts above is enabled and its conditions are fulfilled, the CPU will
get an SIO interrupt request.
A receive error interrupt will be generated whenever a parity error, framing error, or overrun
error is detected.
A receive buffer full interrupt will be generated whenever the valid receive data has been
transferred to the receive buffer.
A transmit buffer empty interrupt will be generated whenever the transmit buffer becomes
empty.
A transmit end interrupt will be generated whenever an SIO data transfer ends.
A modem status interrupt will be generated whenever a change in a modem control input signal
(CTS, DSR) is detected.
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