Module Stop Control Register B (Mstpcrb) - Hitachi H8S/2646 Hardware Manual

Hitachi 16-bit single-chip microcomputer h8s/2646 series
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Bit 2—Smart Card Data Invert (SINV): Specifies inversion of the data logic level. The SINV
bit does not affect the logic level of the parity bit(s): parity bit inversion requires inversion of the
O/E bit in SMR.
Bit 2
SINV
Description
0
TDR contents are transmitted without modification
Receive data is stored in RDR without modification
1
TDR contents are inverted before being transmitted
Receive data is stored in RDR in inverted form
Bit 1—Reserved: It is always read as 1 and cannot be modified.
Bit 0—Smart Card Interface Mode Select (SMIF): When the smart card interface operates as a
normal SCI, 0 should be written in this bit.
Bit 0
SMIF
Description
0
Operates as normal SCI (smart card interface function disabled)
1
Smart card interface function enabled

13.2.10 Module Stop Control Register B (MSTPCRB)

Bit
:
MSTPB7
Initial value
:
R/W
:
R/W
MSTPCRB is an 8-bit readable/writable register that perform module stop mode control.
Setting any of bits MSTPB7 to MSTPB6 to 1 stops SCI0 to SCI1 operating and enter module stop
mode on completion of the bus cycle. For details, see section 22.5, Module Stop Mode.
MSTPCRB is initialized to H'FF by a reset and in hardware standby mode. They are not
initialized in software standby mode.
7
6
5
MSTPB6
MSTPB5
1
1
1
R/W
R/W
4
3
MSTPB4
MSTPB3
MSTPB2
1
1
R/W
R/W
(Initial value)
(Initial value)
2
1
MSTPB1
MSTPB0
1
1
R/W
R/W
R/W
0
1
457

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