Datasheet

Section 17 Smart Card Interface
Page 828 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
SCK
Specified pulse width
SCR write
(CKE0 = 0)
SCR write
(CKE0 = 1)
Specified pulse width
Figure 17.8 Timing for Fixing Clock Output Level
Interrupt Operation (Except Block Transfer Mode): There are three interrupt sources in smart
card interface mode: transmit data empty interrupt (TXI) requests, transfer error interrupt (ERI)
requests, and receive data full interrupt (RXI) requests. The transmit end interrupt (TEI) request is
not used in this mode.
When the TEND flag in SSR is set to 1, a TXI interrupt request is generated.
When the RDRF flag in SSR is set to 1, an RXI interrupt request is generated.
When any of flags ORER, PER, and ERS in SSR is set to 1, an ERI interrupt request is generated.
The relationship between the operating states and interrupt sources is shown in table 17.8.
Note: For block transfer mode, see section 16.4, SCI Interrupts.
Table 17.8 Smart Card Mode Operating States and Interrupt Sources
Operating State Flag Enable Bit
Interrupt
Source
DMAC
Activation DTC Activation
Transmit
Mode
Normal
operation
TEND TIE TXI Possible Possible
Error ERS RIE ERI Not possible Not possible
Receive
Mode
Normal
operation
RDRF RIE RXI Possible Possible
Error PER, ORER RIE ERI Not possible Not possible