ARM ARM DUI 0224I Flash Control Register, Sysflash, Clcd Control Register, Sysclcd, MCI control

Models: ARM DUI 0224I

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Programmer’s Reference

 

 

Figure 4-13 SYS_MCI

 

 

Table 4-12 MCI control

 

 

 

Bits

Access

Description

 

 

 

[31:5]

-

Reserved. Use read-modify-write to preserve value.

 

 

 

[4]

-

Reserved (data multiplex)

 

 

 

[3]

Read

Write protect 1

 

 

 

[2]

Read

Write protect 0

 

 

 

[1]

Read

Card detect 1

 

 

 

[0]

Read

Card detect 0

 

 

 

4.3.12Flash Control Register, SYS_FLASH

Bit 0 of the SYS_FLASH register at 0x1000004C controls write protection of NOR flash devices. The function of the register bits are shown in Table 4-13.

 

 

Table 4-13 Flash control

 

 

 

Bits

Access

Description

 

 

 

[31:1]

-

Reserved. Use read-modify-write to preserve value.

 

 

 

[0]

Read/write

Disables writing to flash if LOW (power-on reset state is

 

 

LOW)

 

 

 

4.3.13CLCD Control Register, SYS_CLCD

The SYS_CLCD register at 0x10000050 controls LCD power and multiplexing and controls the interface to the touchscreen as listed in Table 4-14 on page 4-33. See also LCD power control on page C-7.

4-32

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ARM DUI 0224I

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ARM ARM DUI 0224I manual Flash Control Register, Sysflash, Clcd Control Register, Sysclcd, MCI control, Flash control, Low