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Preliminary User's Manual l TQMa65xx UM 0001 l © 2021, TQ-Systems GmbH
Page 15
Boot Mode pin mapping (continued)
Table 12:
Min Pin Configuration
BOOTMODE Pin
Min Pin Configuration
7
0
All boot mode pins must be properly set
1
Certain boot mode pins are don't cares. ROM code uses built-in values instead.
Table 13:
Primary Boot Mode Configuration
BOOTMODE Pins
Boot Mode
Description
15
14
13
12
11
10
9
8
3 – 0
0000
Sleep
Boot not attempted
Pin Cmd
Iclk
Csel
Speed
Addr
Width
0001
OSPI
–
Port
Pin
Cmd
Iclk
Csel
Speed
Addr
Width
0010
QSPI
–
ns
Csel
Speed
0011
Hyperflash
–
Port
Mode
Csel
Read
Cmd
Addr Width
0100
SPI
–
Bus Reset
Mode
Speed
Addr
0101
I2C
–
Volt
Port
Interface Config
1bit
0110
MMC/SD
–
Clken
Clkf
Interface
Speed
Duplex
Extern conf
0111
Ethernet
–
Mode
Port
1000
USB
–
Port
Dual
Sref
1001
PCIe
–
1010
UART
–
Base
A/D mux
Csel Size
Csel
Bus
Width
1100
GPMC NOR
–
Port
Alt
Bus Width
Speed
Ack
1101
eMMC
–
Table 14:
Backup Boot Mode Configuration
BOOTMODE Pins
Backup Boot Mode
Description
18
17
16
6 – 4
000
None
No backup boot performed
Mode
Port
001
USB
–
010
UART
–
Clkout
Interface
011
Ethernet
–
Volt
Port
1bit
100
MMC/SD
–
Port
Addr Width/Cmd
101
SPI
–
Csel
Speed
110
Hyperflash
–
Bus Reset
Mode
Addr
111
I2C
–
3:
Shaded cells are don’t cares and pins can take any value.