Wakeup Control Register - Samsung S3C2416 User Manual

HSMMC CONTROLLER

5.14 WAKEUP CONTROL REGISTER

This register is mandatory for the Host Controller, but wakeup functionality depends on the Host Controller system
hardware and software. The Host Driver shall maintain voltage on the SD Bus, by setting SD Bus Power to 1 in
the Power Control register, when wakeup event via Card Interrupt is desired.
Register
WAKCON0 0X4AC0002B
WAKCON1 0X4A80002B
Name Bit
[7:3]
ENWKUPREM
ENWKUPINS
ENWKUPINT
20-40
Address R/W
R/W
R/W
Reserved
[2]
Wakeup Event Enable On SD Card Removal
This bit enables wakeup event via Card Removal assertion in the
Normal Interrupt Status register. FN_WUS (Wake Up Support) in
CIS does not affect this bit. (RW)
1 = Enable
0 = Disable
[1]
Wakeup Event Enable On SD Card Insertion
This bit enables wakeup event via Card Insertion assertion in the
Normal Interrupt Status register. FN_WUS (Wake Up Support) in
CIS does not affect this bit. (RW)
1 = Enable
0 = Disable
[0]
Wakeup Event Enable On Card Interrupt
This bit enables wakeup event via Card Interrupt assertion in the
Normal Interrupt Status register. This bit can be set to 1 if FN_WUS
(Wake Up Support) in CIS is set to 1. (RW)
1 = Enable
0 = Disable
Description
Wakeup Control Register (Channel 0)
Wakeup Control Register (Channel 1)
Description
S3C2416X RISC MICROPROCESSOR
Reset Value
Initial Value
0x0
0x0
0
0
0
0