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HD6432351 데이터시트(PDF) 668 Page - Renesas Technology Corp

부품명 HD6432351
상세설명  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 데이터시트(HTML) 668 Page - Renesas Technology Corp

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Section 14 Smart Card Interface
Rev. 3.00 Sep 15, 2006 page 634 of 988
REJ09B0330-0300
SCK
Specified pulse width
SCR write
(CKE0 = 0)
SCR write
(CKE0 = 1)
Specified pulse width
Figure 14.8 Timing for Fixing Clock Output Level
Interrupt Operation
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 14.8.
Table 14.8 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



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