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H8S2245 데이터시트(PDF) 519 Page - Renesas Technology Corp

부품명 H8S2245
상세설명  Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
PDF  818 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8S2245 데이터시트(HTML) 519 Page - Renesas Technology Corp

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Section 13 Smart Card Interface
Rev.3.00 Mar. 26, 2007 Page 477 of 772
REJ09B0355-0300
13.2
Register Descriptions
Registers added with the Smart Card interface and bits for which the function changes are
described here.
13.2.1
Smart Card Mode Register (SCMR)
Bit
:
76
543210
——
——
SDIR
SINV
—
SMIF
Initial value :
11
110010
R/W
:
——
——
R/W
R/W
—
R/W
SCMR is an 8-bit readable/writable register that selects the Smart Card interface function.
SCMR is initialized to H'F2 by a reset, and in standby mode or module stop mode.
Bits 7 to 4—Reserved: Read-only bits, always read as 1.
Bit 3—Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion
format.
Bit 3
SDIR
Description
0
TDR contents are transmitted LSB-first
(Initial value)
Receive data is stored in RDR LSB-first
1
TDR contents are transmitted MSB-first
Receive data is stored in RDR MSB-first
Bit 2—Smart Card Data Invert (SINV): Specifies inversion of the data logic level. This
function is used together with the SDIR bit for communication with an inverse convention card.
The SINV bit does not affect the logic level of the parity bit. For parity-related setting procedures,
see section 13.3.4, Register Settings.



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