
160
6.11.2
External Module Connection Output Pin Select Register (OPINSEL)
7
—
Undefined
R/W
6
P76
STPOE
0
R/W
5
P75
MSOE
0
R/W
4
P74
DTCOE
0
R/W
3
—
Undefined
—
0
—
Undefined
—
2
—
Undefined
—
1
—
Undefined
—
Bit
Initial value
R/W
:
OPINSEL is an 8-bit readable/writable register that selects whether or not output signals
(EXDTCEN, EXMSTP, EXMSN) to externally connected modules are output to pins P77 to P74
in H8S/2214 operation. OPINSEL bits 6 to 4 are initialized to 000 by a power-on reset and in
hardware standby mode. They retain their previous states in a manual reset and in software
standby mode.
Bit 7—Reserved: This bit will return an undefined value if read, and should only be written with
0.
Bit 6—Enable of EXMSTP Output to P76 (P76STPOE): Selects whether or not the EXMSTP
module stop signal to external modules (corresponding to bit 0 in MSTPCRB) is output to P76.
Bit 6
P76STPOE
Description
0
EXMSTP is not output to P76
(Initial value)
1
EXMSTP is output to P76
Bit 5—Enable of
EXMS Output to P75 (P75MSOE): Selects whether or not the EXMS module
stop signal to external modules (corresponding to addresses H'FFFF40 to H'FFFF5F) is output to
P75.
Bit 5
P75MSOE
Description
0
EXMS is not output to P75
(Initial value)
1
EXMS is output to P75