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5-2
Seiko Epson Corporation
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
Interrupt
number
IRQ
number
Vector
address
Hardware interrupt name
Cause of hardware interrupt
Priority
22
6
VTOR + 0x58 Real-time clock interrupt
• 1-day, 1-hour, 1-minute, and 1-second
• 1/32-second, 1/8-second, 1/4-second, and
1/2-second
• Stopwatch 1 Hz, 10 Hz, and 100 Hz
• Alarm
• Theoretical regulation completion
Configurable
23
7
VTOR + 0x5c HW processor
• Error occurrence
• State transition
24
8
VTOR + 0x60 Sound DAC
• Error occurrence
• Data request
25
9
VTOR + 0x64 UART Ch.0 interrupt
• End of transmission
• Framing error
• Parity error
• Overrun error
• Receive buffer two bytes full
• Receive buffer one byte full
• Transmit buffer empty
26
10
VTOR + 0x68 16-bit timer Ch.1 interrupt
Underflow
27
11
VTOR + 0x6c Synchronous serial interface
Ch.0 interrupt
• End of transmission
• Receive buffer full
• Transmit buffer empty
• Overrun error
28
12
VTOR + 0x70 I
2
C Ch.0 interrupt
• End of data transfer
• General call address reception
• NACK reception
• STOP condition
• START condition
• Error detection
• Receive buffer full
• Transmit buffer empty
29
13
VTOR + 0x74 16-bit PWM timer Ch.0 inter-
rupt
• Capture overwrite
• Compare/capture
• Counter MAX
• Counter zero
30
14
VTOR + 0x78 16-bit PWM timer Ch.1 inter-
rupt
• Capture overwrite
• Compare/capture
• Counter MAX
• Counter zero
31
15
VTOR + 0x7c UART Ch.1 interrupt
• End of transmission
• Framing error
• Parity error
• Overrun error
• Receive buffer two bytes full
• Receive buffer one byte full
• Transmit buffer empty
32
16
VTOR + 0x80 16-bit timer Ch.2 interrupt
Underflow
33
17
VTOR + 0x84 Quad synchronous serial
interface Ch.0 interrupt
• End of transmission
• Receive buffer full
• Transmit buffer empty
• Overrun error
34
18
VTOR + 0x88 I
2
C Ch.1 interrupt
• End of data transfer
• General call address reception
• NACK reception
• STOP condition
• START condition
• Error detection
• Receive buffer full
• Transmit buffer empty
35
19
VTOR + 0x8c UART Ch.2 interrupt
• End of transmission
• Framing error
• Parity error
• Overrun error
• Receive buffer two bytes full
• Receive buffer one byte full
• Transmit buffer empty
16-bit timer Ch.0 interrupt
Underflow
36
20
VTOR + 0x90 16-bit timer Ch.3 interrupt
Underflow