Sony CXD5602 User Manual page 94

Table General Purpose Input/Output (GPIO)-22 and Table General Purpose Input/Output (GPIO)-24 show
registers that select I/O pins, Table General Purpose Input/Output (GPIO)-23 and Table General Purpose
Input/Output (GPIO)-25 show selectable I/O pins. Initial value of a register is set as 63. In this case, no I/O pin is
selected and an input value to the circuit for detecting interrupts or events is tied to "0".
As for the selected external interrupt I/O pin, the Input Enable needs to be valid by setting 1 on the register
IO_*.ENZI.
Table General Purpose Input/Output (GPIO)-22 IO Pin Selection (SYS Group)
Address Register
Name
0x041007B0 IOCSYS_INTSEL0
0x041007B4 IOCSYS_INTSEL1
Bit Field Type Bit
Name
Reserved RO [31:30]
SEL3 RW [29:24]
Reserved RO [23:22]
SEL2 RW [21:16]
Reserved RO [15:14]
SEL1 RW [13:8]
Reserved RO [7:6]
SEL0 RW [5:0]
Reserved RO [31:14]
SEL5 RW [13:8]
Reserved RO [7:6]
SEL4 RW [5:0]
－94/1010－
Initial Description
Value
0 Reserved
63 assigns an I/O pin to an external signal (SYSGPI3)
0 Reserved
63 assigns an I/O pin to an external signal (SYSGPI2)
0 Reserved
63 assigns an I/O pin to an external signal (SYSGPI1)
0 Reserved
63 assigns an I/O pin to an external signal (SYSGPI0)
0 Reserved
63 assigns an I/O pin to an external signal (SYSGPI5)
0 Reserved
63 assigns an I/O pin to an external signal (SYSGPI4)
CXD5602 User Manual