Philips AZ 3038, Service Manual, Page: 12 / 25

5 - 2 5 - 2
SPI
Interface
I2S
Interface
Clock
Oscillator
RDS
Decoder
and
ARROW
Interface
CD
Controller
and
ARROW
Interface
GPIO A
(eg. LCD or
VFD interface,
CD mechanism
and multi-
changer)
AC97
Interface
IR
Receiver
GPIO B
(switch matrix
driver / position
encoder) GPIO C
(twin logic cassette
deck control, radio
tuner, ARROW
control, and NVR
control) GPIO D (dual function)
GPIO/Data
GPIO/External Interrupt
GPIO/Stereo DAC
GPIO/Power-On-Config
DSP
UART
Debug
Port
Interrupt
Controller
and
Priority
Logic
Round /
Normaliser
Shifter
External
Memory
Controller
and
Arbitrator
Support Unit 1
for CD Error
Correction
ALU
MACC
Register
File
R0 to R7
RAM B
Stack Pointer
Flags Program
Counter
OpCode
Decode
and
Execution
State
Machine
RAM A Program
RAM
Control
Registers
Address
Generator
and
Arbitrator
Support Unit 2
for CD Error
Correction
DART
Pin Name I/O Function
2-9 XD15-8 I/O
Data Bus bit 15-8 /
GPIO D bit 15-8
11-18 XD7-0 I/O Data Bus bit 7-0
19-43 A0-18 O
Address Bus bit 0-18
44 WEL0 O Memory Write Enable
45 WEL1 O Memory Write Enable
46 OEL O Memory Output Enable
47 SCSL O SRAM Chip Select
48 RASL O DRAM Row Address Strobe
49 UCASL O DRAM Column Address Strobe
50 LCASL O DRAM Column Address Strobe
51 BCSL O BootROM Chip Select
53-58 GPIO0-5 I/O GPIO A bit 0-5
60 XTLIN I External Crystal
61 XTLOUT O External Crystal
63-73 GPIO6-15 I/O GPIO A bit 6-15
75-85 GPIO16-23 I/O GPIO B bit 0-7
86-93 GPIO24-31 I/O GPIO B bit 8-15
95-112 GPIO32-47 I/O GPIO C bit 0-15
113 GPIO48 I/O GPIO D bit 0
116 GPIO49 I/O GPIO D bit 1 / Left DAC
117 GPIO50 I/O GPIO D bit 2 / Right DAC
118 GPIO51 I/O GPIO D / External Interrupt
119 GPIO52 I/O GPIO D / BootROM Width
123 GPIO53 I/O GPIO D / Clock Divide Ratio
124 GPIO54 I/O GPIO D / Clock Divide Ratio
125 GPIO55 I/O GPIO D / Clock Divide Ratio
126 RFIN I CD Raw Data
127 FE_IN I CD Focus Error
128 RE_IN I CD Radial Error
129 CA_IN I CD Central Aperture
130 FOCUS O CD Focus
131 TRACK O CD Tracking
132 SPINDLE O CD Spindle
133 SLED O CD Sled
134 REF O CD DAC Reference
135 MPX_IN I RDS Bitstream Data
136 LASER O CD Laser Enable
138 ADC_CLK O 11MHz Sigma Delta Clock
140 SCLK
O SPI Clock
141 MOSI O SPI Data Out
142 MISO I SPI Data In
143 ERESETL I Reset
144 AC97CLK O 22MHz Clock
145 SYNC O Sync Pulse
146 SDOUT O Serial Data Out
147 BITCLK I 11 MHz Bit Clock
148 SDATAIN I Serial Data In
150 RXD I UART DATA In
151 TXD O UART DATA Out
152 I2SWS O I2S Word Select
153 I2SCLK O I2S Clock Out
154 I2SDATA O I2S Data Out
156 IRIN I Infra Red (IR) Detector
157 TEST0 I (No Connection)
158 TEST1 I (No Connection)
1, 20, 29, 40, 52, 74, 81, 100, 114, 120, 137, 149,
155
Vdd
10, 21, 41, 42, 59, 62, 65, 79, 80, 94, 101, 115,
121, 122, 139, 159, 160
Vss
BLOCK DIAGRAM
SERIAL
INTERFACE
DIGITAL
FILTERS
WM8725
1 LRCIN
DIN
BCKIN
NC
CAP
VOUTR
GND
SCKI
FORMAT
NC
DEEMPH
MUTE
VOUTL
VDD
14
2 13
12
11
10
9
8
3
4
5
6
7
DIGITAL
SIGMA-DELTA
MODULATOR
SWITCHED
CAPACITOR
DAC
DIGITAL
SIGMA-DELTA
MODULATOR
SWITCHED
CAPACITOR
DAC
FORMAT (13)
SCKI (14)
LRCIN (1)
DIN (2)
BCKIN (3)
(6) VOUTR
(9) VOUTL
(12)
DEEMPH
(10)
MUTE
(8)
VDD
(5)
CAP
(7)
GND
WM8725
BLOCK DIAGRAM AND PINS DESCRIPTION
GSL88301 PINS DESCRIPTION OF IC
WM8725