HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 705

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

15.2.4
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 14.2.6, 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 being fixed high or low.
SMIF
0
1
1
1
1
1
1
Bit
Initial value :
R/W
SCMR
Serial Control Register (SCR)
GM
See the SCI specification
0
0
1
1
1
1
:
:
SMR
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
0
4
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.4.00 Sep. 07, 2007 Page 675 of 1210
MPIE
R/W
3
0
TEIE
R/W
2
0
REJ09B0245-0400
CKE1
R/W
1
0
CKE0
R/W
0
0