Service manual

58
28KF-84H
SDA5550 (IC6001)
Block Diagram
Pin Assignments
Memory
Extension Unit
Core
Interrupt
Controller
Counter 1
Counter 0
CLUT
DAC’s
BLANK/COR
B R
G
V
H
FIFO
RAM/ROM Interface
Display logic
Display
Regs
A
D
C
X
4
P[0 to 4]
A[0 to 15] D[0 to 7] ALE PSEN RD WR
A[16 to A20]
C
V
B
S
P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
VDD 2.5
VSS
VDD 3.3
CVBS
VDDA 2.5
VSSA
P2.0 P2.1 P2.2 P2.3
HS / SSC
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
VS
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
VDD 3.3 VSS VDD 2.5 BLANK / COR B G R VDDA 2.5 VSSA XTAL1 XTAL2
P4.3
P4.2
VDD 3.3
VSS
P3.7
P3.6
RST
D3
XROM
P1.7 A7 A13 A12 A14 A15 A17 A16 A18 A19
A8
A6
A9
A5
A11
A4
PSEN
A3
A10
VSS
VDD 3.3
A2
A1
D7
A0
D6
D0
D5
D1 D4 D2
ENE
STOP
OCF
RD WR FL_RST
FL_CE
FL_PGM
ALE
EXTIF
TVTEXT PRO SDA 55XX P-MQFP-100
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
818283848586878889909192939495969798100 99
80