h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 541
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h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 541 of 1165
- Download datasheet (6Mb)
14.2.4
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 13.2.6, 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
SMIF
0
1
1
1
1
1
1
Bit
Initial value :
R/W
Serial Control Register (SCR)
SMR
C/A A A A , GM
See the SCI
0
0
1
1
1
1
:
:
R/W
TIE
7
0
CKE1
0
0
0
0
1
1
R/W
RIE
6
0
SCR Setting
R/W
CKE0
0
1
0
1
0
1
TE
5
0
R/W
RE
4
0
Operates as port I/O pin
Outputs clock as SCK output pin
Operates as SCK output pin, with output fixed
low
Outputs clock as SCK output pin
Operates as SCK output pin, with output fixed
high
Outputs clock as SCK output pin
SCK Pin Function
Rev. 5.00 Sep 22, 2005 page 515 of 1136
MPIE
R/W
3
0
Section 14 Smart Card Interface
TEIE
R/W
2
0
REJ09B0257-0500
CKE1
R/W
1
0
CKE0
R/W
0
0
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