CXD5602 User Manual
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879/1010
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slave_type
RW
[1:0]
2'b00
SPI communication slave selection function
0,3: SPI3_CS0_X
1: SPI3_CS1_X
2: SPI3_CS2_X
3.10.3.3
Clock and Reset
Figure SPI-97 shows the clock and reset system diagram of the SPI3.
When accessing the SPI3 register, set SCU_CKEN.SCU=1'b1 beforehand.
SWRESET_SCU.XRST_SCU_SPI
CK
GATE
SCU_CKEN.SCU_SPI
PWD_RESET0.PWD_SCU
RCOSC
XOSC
0
3
2
1
1/2
1/3
1/4
CKSEL_SCU.SEL_SCU_XTAL
0
3
2
1
0
1
RTC_CLK_IN
(32.768kHz)
1/250
ck_scu_pre
CKSEL_SCU.SEL_SCU_32K
Reserved
CKSEL_SCU.SEL_SCU
SPI3
PCLK
SSPCLK
nSSPRST
PRESETn
Figure SPI-97 SPI3 Clock and Reset System
3.10.3.4
Clock Supply Start and Stop
3.10.3.4.1
Clock Supply Start
Perform the following control to start supplying the SSPCLK clock and PCLK clock to the SPI3.
1.
Reset release
SWRESET_SCU.XRST_SCU_SPI
=1'b1
2.
Clock supply start
SCU_CKEN.SCU_SPI
=1'b1
3.10.3.4.2
Clock Supply Stop
Perform the following control to stop supplying the SSPCLK clock and PCLK clock to the SPI3.
1.
Clock supply stop
SCU_CKEN.SCU_SPI
=1'b0
Summary of Contents for CXD5602
Page 1: ...CXD5602 User Manual 1 1010 CXD5602 User Manual ...
Page 36: ...CXD5602 User Manual 36 1010 2 3 Block Diagram Figure Block Diagram 1 CXD5602 Block Diagram ...
Page 144: ...CXD5602 User Manual 144 1010 GNSS_RAMMODE_SEL 0x3F000FFF SRAM GNSS BB 0 5 ON ...
Page 835: ...CXD5602 User Manual 835 1010 enable disable ...