HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1080

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 30
(5)
The smart card interface has four types of interrupt requests: transmit data empty interrupt (TXI)
requests, transmit/receive error interrupt (ERI) requests, receive data full interrupt (RXI) requests,
and transmit end interrupt (TEI) requests.
• When the TDRE flag in SCSSR is set to 1, a TXI request is issued.
• When the RDRF flag in SCSSR is set to 1, an RXI request is issued.
• When the ERS, ORER, PER, or WAIT_ER flag in SCSSR is set to 1, an ERI request is issued.
• When the TEND flag in SCSSR is set, a TEI request is issued.
Table 30.4 lists the interrupt sources for the smart card interface. Each of the interrupt requests can
be enabled or disabled using the TIE, RIE, TEIE, and WAIT_IE bits in SCSCR and the EIO bit in
SCSC2R. In addition, each interrupt request can be sent independently to the interrupt controller.
Table 30.4 Interrupt Sources of Smart Card Interface
Rev. 3.00 Jan. 18, 2008 Page 1018 of 1458
REJ09B0033-0300
Transmit mode
Receive mode
Interrupt Operations
SIM Card Module (SIM)
Operating State
Normal operation
Error
Normal operation
Error
Flags
TDRE
TEND
ERS
RDRF
ORER, PER
WAIT_ER
Mask Bits
TIE
TEIE
RIE
RIE
WAIT_IE
RIE, EIO
Interrupt Sources
TXI
TEI
ERI
RXI
ERI
ERI