H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 653

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

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.
Bit
Initial value :
R/W
SCMR
SMIF
0
1
1
1
1
1
1
Serial Control Register (SCR)
C/A, GM
:
:
SMR
0
0
1
1
1
1
R/W
TIE
7
0
CKE1
SCR Setting
0
0
0
0
1
1
R/W
RIE
6
0
CKE0
R/W
0
1
0
1
0
1
TE
5
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
See the SCI
R/W
RE
4
0
Rev. 3.00 Sep 15, 2006 page 619 of 988
MPIE
R/W
3
0
SCK Pin Function
Section 14 Smart Card Interface
TEIE
R/W
2
0
REJ09B0330-0300
CKE1
R/W
1
0
CKE0
R/W
0
0