Pin Multiplexer - Sony CXD5602 User Manual

3.1.4

Pin Multiplexer

To each pin of this LSI, Pin Multiplexer can assign a role selecting from up to four options. Multiple roles cannot
be played at a time. Not only General Purpose Input/Output (GPIO) mode controlled by register, but also
Inter-Integrated Circuit (I2C), Serial Peripheral Interface (SPI), Universal Asynchronous Receiver Transmitter
(UART), Pulse Width Modulation (PWM), Secure Digital Input/Output (SDIO), Embedded Multi Media Card
(EMMC), or AUDIO can be selected.
3.1.4.1 List of Registers
Table I/O Configuration-7 shows list of registers for controlling Pin Multiplexer. Table I/O Configuration-8 shows
list of registers that control Input/Output and Pull up/down of IOCELL. And Table I/O Configuration-9 shows list
of registers for AUDIO Output Enable Control, and for input value setting on IP (SDIO) when SDIO function is
not used.
Table I/O Configuration-7 List of Registers for Controlling Pin Multiplexer
Address Register Name
0x041007C0 IOCSYS_IOMD0
0x041007C4 IOCSYS_IOMD1
0x041014A0 IOCAPP_IOMD
Table I/O Configuration-8 List of Registers for Controlling IOCELL
Address Register Name
0x04100800 IO_RTC_CLK_IN
0x04100804 IO_I2C4_BCK
0x04100808 IO_I2C4_BDT
0x0410080C IO_PMIC_INT
0x04100810 IO_RTC_IRQ_OUT
0x04100814 IO_AP_CLK
0x04100818 IO_GNSS_1PPS_OUT
0x0410081C Reserved
|
0x04100840
Attrib Function
ute
RW selects pin function (System)
RW selects pin function (System)
RW selects pin function (Application)
Attrib Function
ute
RW IOCELL setting
RTC_CLK_IN
RW IOCELL setting for pin P10_00
RW IOCELL setting for pin P10_01
RW IOCELL setting for pin P11_00
RW IOCELL setting for pin P12_00
RW IOCELL setting for pin P13_00
RW IOCELL setting for pin P14_00
RO Reserved
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CXD5602 User Manual
Initial Value
0x00000000
0x00000000
0x00000000
Initial Value
for pin 0x00010100
0x01010100
0x01010100
0x01010100
0x01010100
0x01010100
0x01010100
0x00000000