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SH7708 数据表(PDF) 420 Page - Renesas Technology Corp

部件名 SH7708
功能描述  SuperH??RISC engine
PDF  633 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

SH7708 数据表(HTML) 420 Page - Renesas Technology Corp

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14.2.1
Smart Card Mode Register (SCSCMR)
The smart card mode register (SCSCMR) is an 8-bit read/write register that selects smart card
interface functions. SCSMR bits 0, 2, and 3 are initialized to 0 by a reset and in standby mode.
Bit:
7
6
5
4
3
2
1
0
Bit name:
—
—
—
—
SDIR
SINV
—
SMIF
Initial value:
—
—
—
—
0
0
—
0
R/W:
R
R
R
R
R/W
R/W
R
R/W
Bits 7 to 4 and 1—Reserved: An undefined value will be returned if these bits are read.
Bit 3—Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion format.
Bit 3: SDIR
Description
0
Contents of SCTDR are transferred LSB first, receive data is stored in
SCRDR LSB first.
(Initial value)
1
Contents of SCTDR are transferred MSB first, receive data is stored in
SCRDR MSB first.
Bit 2—Smart Card Data Inversion (SINV): Specifies whether to invert the logic level of the data.
This function is used in combination with bit 3 for transmitting and receiving with an inverse
convention card. SINV does not affect the logic level of the parity bit. See section 14.3.4, Register
Settings, for information on how parity is set.
Bit 2: SINV
Description
0
Contents of SCTDR are transferred unchanged, receive data is stored in
SCRDR unchanged.
(Initial value)
1
Contents of SCTDR are inverted before transfer, receive data is inverted
before storage in SCRDR.
Bit 0—Smart Card Interface Mode Select (SMIF): Enables the smart card interface function.
Bit 0 : SMIF
Description
0
Smart card interface function disabled
(Initial value)
1
Smart card interface function enabled



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