Samsung S3C6400X User Manual page 787

HOST INTERFACE
(3)
(2)
Indirect Modem I/F
External
Modem
(1)
Reset
WakeUp
(1) Modem release AP Reset : All system except ARM
and WDT go to normal state
(2) Modem write booting code to S.S. Thru Indirect
Host I/F
(3) Modem set boot done field(HOST I/F SFR) to
High
(4) SYSCON release reset to ARM and WDT, so AP
start run
24-10
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Modem I/F
Direct Modem I/F
8KByte
DPRAM
GPIO
Figure 24-10. Modem Boot procedure
M
M
S
S
S
S3C6400X
RISC MICROPROCESSOR
WDT
ARM
(4)
SYSCON
NFCON
Stepping Stone
OM
Boot Memory