Daewoo DSN-300A, Service Manual

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5
4. INTERNET SET TOP BOX SPECIFICATION
4-1. HARDWARE SPECIFICATION
1. CPU : VLSI VY86C7500
ARM 7 RISC CPU core from Advanced RISC M achine Co.
H ig h ly inte rg ra te d R IS C co m pu te r
3 0 D hrysto n e 2 .1 M IP S A R M 7 co re @ 33 M H z C P U clo ck
4 K b yte co m b in e d in stru ctio n a n d da ta ca che
F le xible M e m o ry M a n ag e m e n t U n it
S u pp o rts 1 6 or 32 b it w id e m e m o ry via in te rn a l R O M an d D R A M co n tro lle rs
3 c ha n n e l D M A
I/O c on tro ller
8 s te reo so u n d ch a n ne ls
2 s eria l p orts, 4 A /D ch a n ne ls
3 2-b it C D q u a lity se ria l so u n d c ha n n el
V id e o co n tro lle r w ith up to 1 2 0 M H z p ixe l clo ck
1 6 m illio n co lo rs from 2 5 6-en try p a le tte
1 6-le ve l g re y sca le s for LC D d isp la ys
S u spe n d an d sto p p o w e r sa ving m od e s
2. M em ory
P R O M : 5 1 2 K B
B oo t ro u tin e & E m e rg en cy P rog ram S tora ge
F L A S H R O M : 1 M B E xte nd ib le u p to 2 M B
A pp lica tion P ro g ra m & U se r D ata S tora ge
D R A M : 4 M B E xte nd ib le u p to 3 2M B
P ro gra m R u n n in g S p e c.
3. M odem
3 3,6 0 0 bp s M o de m ( IS A In te rfa ce )
4. M iscellaneous
N T S C /P A L E n co d e r, IR R e ce ive r C irc uit
5. Peripheral Port
K e ybo a rd /M ou se P o rts
S -vid e o O u tp u t
C o m po site A /V O u tp u t
T e le p ho n e Line I/O P orts
V G A O utp u t
V G A In p u t P o rt fo r T V e n co d er
P rin te r P o rt