Sanyo DVD-SL22 Service Manual page 27

IC BLOCK DIAGRAM & DESCRIPTION
IC800 ZR36742PQC (A/V Decoder)
Pin No.
38
CDCLK#
GPCI/O[44]
39
GPCI/O[45]
ADC interface (3 pin)
164~166 SERADC[2:0]
SDRAM interface (36 pin)
80,82,84,86, RAMDAT[15:0]
87,89,90,92,
93,95,96,98,
99,101,102,
104
53~55,57~60, RAMADD[11:0]
62~64,67,70
72 RAMRAS#
74 RAMCAS#
78
76 RAMDQM
66,68 RAMBA[1:0]
71 RAMCS#
75 RAMWE#
External memory interface (41 pin)
105~113, MEMDA[15:0]
117~122
131,133~138, MEMAD[18:0]
140,142~150,
152,154
155 MEMAD[19]#
GPCI/O[33]
129 MEMWR#
128 MEMRD#
124,126 MEMCS[1:0]#
123 MEMCS[2]#
GPCI/O[31]
Power supply (52 pin)
15,33,50,56,
65,73,79,88,
94,100,114,
125,139,151,
189,207
1,17,35,61,69,
77,85,91,97,
103,116,127,
141,153,191
48,159
178
180
30,81,132,183
28,83,130,185
158
156
171 VDDDAC
168,174,176 GNDDAC[D,B,P]
163 GNDADC
167 GNDADC
Name I/O Function
ATCS1# O# ATAPI chip select signal O.
I# CD-DSP bit clock signal I.
I/O Controled general I / O by microcomputer software.
ATCS0# O# ATAPI chip select signal O.
CDDAT# I# CD-DSP data I.
I/O Controled general I / O by microcomputer software.
I ADC analog I.
I/O SDRAM data I / O.
O
SDRAM address O.
O SDRAM low select O (Active low).
O SDRAM column select O (Active low).
PCLK O SDRAM clock O (Same internnal process clock).
O SDRAM data mask O (Active high).
O SDRAM bank select O.
O SDRAM chip select O (Active low).
O SDRAM write enable O (Active low).
I/O External memory data I / O.
O External memory address O.
Used MEMAD (18 : 16) for PLL debug.
O# Externaal address O.
I/O Controled general I / O by microcomputer software.
O External memory write enable O (Active low).
O External memory read enable O (Active low).
O External memory chip select O (Active low).
O# External memory chip select O (Active low).
I/O Controled general I / O by microcomputer software.
GNDP S 3.3V digital peripheral power supply GND (16 pin).
VDDP S 3.3V digital peripheral power supply (16 pin).
VDDIP S 3.3V peripheral reference voltage (2 pin).
GNDP2 S Filtered 3.3V digital power supply GND for AMCLK.
VDDP2 S Filtered 3.3V digital power supply for AMCLK.
GNDC S 1.8V digital core power supply GND (4 pin).
VDDC S 1.8V digital core power supply (4 pin)
GNDA S Internal PLL oircuit GND.
VDDA S
1.8V internal PLL circuit power supply.
S 3.3V DAC analog power supply.
S 3.3V DAC analog power supply GND (3 pin).
S 3.3V ADC analog power supply.
S 3.3V ADC analog power supply GND.
- 26 -