HD6473032F16 Datasheet, PDF (532/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Section 14 Smart Card Interface
14.2.4 Serial Control Register (SCR)
Bits 1 and 0 have different functions in smart card interface mode.
Bit
Initial value
Read/Write
7
TIE
0
R/W
6
5
4
3
2
1
0
RIE
TE
RE
MPIE TEIE CKE1 CKE0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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 (CKE1, CKE0): Setting enable or disable for the SCI clock
selection and 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.
SMR
Bit 7:
GM
0
0
1
1
1
1
SCR
Bit 1: Bit 0:
CKE1 CKE0
0
0
0
1
0
0
0
1
1
0
1
1
Description
The internal clock/SCK0 pin functions as an I/O port (Initial value)
The internal clock/SCK0 pin functions as the clock output
The internal clock/SCK0 pin is fixed at low-level output
The internal clock/SCK0 pin functions as the clock output
The internal clock/SCK0 pin is fixed at high-level output
The internal clock/SCK0 pin functions as the clock output
Rev. 3.00 Mar 21, 2006 page 502 of 814
REJ09B0302-0300