UG-707
ADV8005 Hardware Reference Manual
Figure 88: SPI Loopback Enabled so MCU Can Program SPI Flash
By default, the SPI ports are set in manual mode for the SPI which means the SPI pins are tristated (input). To make the SPI ports operational,
the following register bits must be configured to automatic mode.
spi1_cs_oe_man_en
, IO Map,
Address 0x1ACE[7]
This bit is used to control the output enable manual override for spi1_cs.
Function
spi1_cs_oe_man_en
Description
0
Auto
1 (default)
manual override
spi1_miso_oe_man_en
, IO Map,
Address 0x1ACE[6]
This bit is used to control the output enable manual override for spi1_miso.
Function
spi1_miso_oe_man_en
Description
0
Auto
1 (default)
Manual override
spi1_mosi_oe_man_en
, IO Map,
Address 0x1ACE[5]
This bit is used to control the output enable manual override for spi1_mosi.
Function
spi1_mosi_oe_man_en
Description
0
Auto
1 (default)
Manual override
spi1_sclk_oe_man_en
, IO Map,
Address 0x1ACE[4]
This bit is used to control the output enable manual override for spi1_sclk.
Function
spi1_sclk_oe_man_en
Description
0
Auto
1 (default)
Manual override
OSD_CORE
SPI
Slave
Config
Register
DDR2 Memory
I2C
Slave
FLASH
MEM
System
Controller(CPU)
SPI
Master
Rev. A | Page 176 of 317