HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 523

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

13.2.4
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 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
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
SCK Pin Function
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
Rev.3.00 Mar. 26, 2007 Page 481 of 772
MPIE
R/W
3
0
Section 13 Smart Card Interface
TEIE
R/W
2
0
REJ09B0355-0300
CKE1
R/W
1
0
CKE0
R/W
0
0