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Rev.1.01 2007.02.16
RJJ10J1643-0101
168
__ReadIOPortRegister
Synopsis
<Read from I/O port register>
Boolean __ReadIOPortRegister(unsigned long data1, unsigned int *data2)
data1 Setup data 1 (content differs with MCU type)
data2 Pointer to the variable in which the value read from I/O port register is stored.
Description
Gets the value of a specified I/O port from each relevant register.
[data1]
Specify an I/O port register from which data is read. The definition values
corresponding to each I/O port register are listed below.
(M16C)
RAPI_PORT_0 Port P0 register RAPI_PORT_1 Port P1 register
RAPI_PORT_2 Port P2 register RAPI_PORT_3 Port P3 register
RAPI_PORT_6 Port P6 register RAPI_PORT_7 Port P7 register
RAPI_PORT_8 Port P8 register RAPI_PORT_9 Port P9 register
RAPI_PORT_10 Port P10 register
(R8C)
RAPI_PORT_0 Port P0 register RAPI_PORT_1 Port P1 register
RAPI_PORT_2 Port P2 register RAPI_PORT_3 Port P3 register
RAPI_PORT_4 Port P4 register RAPI_PORT_6 Port P6 register
(H8/300H)
RAPI_PORT_1 Port P1 register RAPI_PORT_2 Port P2 register
RAPI_PORT_3 Port P3 register RAPI_PORT_5 Port P5 register
RAPI_PORT_6 Port P6 register RAPI_PORT_7 Port P7 register
RAPI_PORT_8 Port P8 register RAPI_PORT_9 Port P9 register
RAPI_PORT_B Port PB register RAPI_PORT_C Port PC register
RAPI_PORT_D Port PD register RAPI_PORT_E Port PE register
RAPI_PORT_F Port PF register RAPI_PORT_G Port PG register
RAPI_PORT_H Port PH register RAPI_PORT_J Port PJ register
Return value
If the I/O port register specification is incorrect, RAPI_FALSE is returned; otherwise,
RAPI_TRUE is returned.
Functionality
I/O port
Reference
__SetIOPort, __ReadIOPort, __WriteIOPort, __SetIOPortRegister,
__WriteIOPortRegister
Remark
•
If an undefined value is specified in the first argument, operation of the API cannot
be guaranteed.
•
The specifiable I/O port registers differ with each CPU used.