NEC Network Controller uPD98502 - Manual (Page 188)

CHAPTER 3 SYSTEM CONTROLLER
188 Preliminary User’s Manual S15543EJ1V0UM
3.1.10 Data flow diagram
V R 4 1 2 0 A C o re to S D R A M IB U S to S D R A M
V R 4 1 2 0 A C o re to IB U S V R 4 1 2 0 A C o re to U A R T
S y sAD
M E M
F L AS H -IF
S D R A M -IF
M e m or y
Ar bite r
M IF H IF
S ys AD -IF S ys AD -IF
W P
R W R
IB U S M a s te r-IF IB U S S la v e -IF
IBU S
S y sAD
T IM E R
M E M
R S -2 3 2 C
F L AS H -IF
S D R A M -IF U AR T
R E G
M e m or y
Ar bite r
M IF H IF
D S U
S ys AD -IF S ys AD -IF
W P
W
R W R
IB U S M a s te r-IF IB U S S la v e -IF
IBU S
S y sAD
M E M
F L AS H -IF
S D R A M -IF
M e m or y
Ar bite r
M IF H IF
S ys AD -IF S ys AD -IF
W P
W
R W R
IBU S
IB U S M a s te r-IF IB U S S la v e -IF
S y sAD
M E M
F L AS H -IF
S D R A M -IF
M e m or y
Ar bite r
M IF H IF
S ys AD -IF S ys AD -IF
W P
W
R W R
IBU S
IB U S M a s te r-IF IB U S S la v e -IF
M IC R O
W IR E
S e r ia l
R O M
T IM E R
R S -2 3 2 C U AR T
R E G
D S U
M IC R O
W IR E
S e r ia l
R O M
T IM E R
R S -2 3 2 C U AR T
R E G
D S U
M IC R O
W IR E
S e r ia l
R O M
W
T IM E R
R S -2 3 2 C U AR T
R E G
D S U
M IC R O
W IR E
S e r ia l
R O M