HD6432351 Datasheet, PDF (620/989 Pages) Renesas Technology Corp – The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise

Bit 7
GM
Description
0
Normal smart card interface mode operation
(Initial value)
• TEND flag generation 12.5 etu after beginning of start bit
• Clock output ON/OFF control only
1
GSM mode smart card interface mode operation
• TEND flag generation 11.0 etu after beginning of start bit
• High/low fixing control possible in addition to clock output ON/OFF control (set by
SCR)
Note: etu: Elementary time unit (time for transfer of 1 bit)
Bits 6 to 0—Operate in the same way as for the normal SCI.
For details, see section 13.2.5, Serial Mode Register (SMR).
14.2.4 Serial Control Register (SCR)
Bit
:
7
6
5
TIE
RIE
TE
Initial value :
0
0
0
R/W
: R/W
R/W
R/W
4
3
2
1
0
RE
MPIE TEIE CKE1 CKE0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
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.
600