Samsung S3C6400X User Manual page 786

S3C6400X RISC MICROPROCESSOR
MODEM Booting
MODEM Booting means that the Host(Modem) controls AP booting including Reset. In this case, AP does not
need to have External Boot Memory(NAND). Modem download the AP boot code from its Boot Memory to the
Stepping Stone memory area(4Kbyte) inside AP through HOST I/F(indirect modem I/F) block. Then Modem
assert the boot done(bit[0] field in the SYS_CTRL register) signal for release CPU operation of the AP.
Modem
Boot Memory
(NAND)
(Host)
Figure 24-9. Modem Boot connection diagram
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.
Addr, Control
data
Interrupt
Reset
WakeUp
HOST INTERFACE
AP
(Client)
Boot Memory
(NAND)
24-9