R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 583

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

14.5
The SSU interrupt requests are an overrun error, a conflict error, a receive data register full,
transmit data register empty, and a transmit end interrupts. Of these interrupt sources, a receive
data register full, a transmit data register empty, and a transmit end interrupts can activate the
DMAC for data transfer.
Since both an overrun error and a conflict error interrupts are allocated to the SSERI vector
address, and both a transmit data register empty and a transmit end interrupts are allocated to the
SSTXI vector address, the interrupt source should be decided by their flags. Table 14.7 lists the
interrupt sources.
When an interrupt condition shown in table 14.7 is satisfied, an interrupt is requested. Clear the
interrupt source by CPU or DMAC data transfer.
Table 14.7 Interrupt Sources
Channel Abbreviation Interrupt Source
0
1
2
SSERI0
SSRXI0
SSTXI0
SSERI1
SSRXI1
SSTXI1
SSERI2
SSRXI2
SSTXI2
Interrupt Requests
Overrun error
Conflict error
Receive data register full
Transmit data register empty
Transmit end
Overrun error
Conflict error
Receive data register full
Transmit data register empty
Transmit end
Overrun error
Conflict error
Receive data register full
Transmit data register empty
Transmit end
Section 14 Synchronous Serial Communication Unit (SSU)
Symbol Interrupt Condition
OEI0
CEI0
RXI0
TXI0
TEI0
OEI1
CEI1
RXI1
TXI1
TEI1
OEI2
CEI2
RXI2
TXI2
TEI2
(RIE = 1) • (ORER = 1)
(CEIE = 1) • (CE = 1)
(RIE = 1) • (RDRF = 1)
(TIE = 1) • (TDRE = 1)
(TEIE = 1) • (TEND = 1)
(RIE = 1) • (ORER = 1)
(CEIE = 1) • (CE = 1)
(RIE = 1) • (RDRF = 1)
(TIE = 1) • (TDRE = 1)
(TEIE = 1) • (TEND = 1)
(RIE = 1) • (ORER = 1)
(CEIE = 1) • (CE = 1)
(RIE = 1) • (RDRF = 1)
(TIE = 1) • (TDRE = 1)
(TEIE = 1) • (TEND = 1)
Rev. 3.00 Mar. 14, 2006 Page 545 of 804
REJ09B0104-0300
DMAC
Activation


Yes
Yes
Yes


Yes
Yes
Yes


Yes
Yes
Yes