HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 495
HD6412340
Manufacturer Part Number
HD6412340
Description
H8S/2345 F-ZTAT Hardware Manual
Manufacturer
HITACHI [Hitachi Semiconductor]
Datasheet
1.HD6412340.pdf
(907 pages)
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13.2.4
Bits 1 and 0 of SCR have a different function in smart card interface mode.
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 (CKE1, CKE0): Selects the clock source, and enables or disables
clock output from the SCK pin.
In smart card interface mode, it is possible to switch between enabling and disabling of the normal
clock output, and specify a fixed high level or fixed low level for the clock output.
SCMR
SMIF
0
1
Bit
Initial value
R/W
Serial Control Register (SCR)
SMR
C/A, GM
0
1
:
:
:
R/W
TIE
7
0
CKE1
0
1
SCR Setting
R/W
RIE
6
0
CKE0
0
1
0
1
0
1
R/W
TE
5
0
SCK Pin Function Description
Refer to SCI designation
The pin functions as an I/O port
The pin outputs the clock as the SCK output pin
The pin outputs fixed low level as the SCK output pin
The pin outputs the clock as the SCK output pin
The pin outputs fixed high level as the SCK output pin
The pin outputs the clock as the SCK output pin
R/W
RE
4
0
MPIE
R/W
3
0
TEIE
R/W
2
0
CKE1
R/W
1
0
CKE0
R/W
0
0
481
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