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H8S2245 데이터시트(PDF) 523 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

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Section 13 Smart Card Interface
Rev.3.00 Mar. 26, 2007 Page 481 of 772
REJ09B0355-0300
13.2.4
Serial Control Register (SCR)
Bit
:
76
543210
TIE
RIE
TE
RE
MPIE
TEIE
CKE1
CKE0
Initial value :
00
000000
R/W
:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
In smart card interface mode, the function of bits 1 and 0 of SCR changes when bit 7 of the serial
mode register (SMR) is set to 1.
Bits 7 to 2—Operate in the same way as for the normal SCI.
For details, see section 12.2.6, Serial Control Register (SCR).
Bits 1 and 0—Clock Enable 1 and 0 (CKE1, CKE0): These bits are used to select the SCI clock
source and enable or disable clock output from the SCK pin.
In smart card interface mode, in addition to the normal switching between clock output enabling
and disabling, the clock output can be specified as to be fixed high or low.
SCMR
SMR
SCR Setting
SMIF
C/
A
AA
A, GM
CKE1
CKE0
SCK Pin Function
0
See the SCI
1
0
0
0
Operates as port I/O pin
1
0
0
1
Outputs clock as SCK output pin
1
1
0
0
Operates as SCK output pin, with output fixed
low
1
1
0
1
Outputs clock as SCK output pin
1
1
1
0
Operates as SCK output pin, with output fixed
high
1
1
1
1
Outputs clock as SCK output pin



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