3-9
PCS-1500/1500P
Step Do
wn
DC-DC
270KW
ord
Field Memor
y
256K
SRAM
32Kx8bit
16M DRAM
EDO 1M
x16bit
16M DRAM
EDO 1M
x16bit
16M DRAM
EDO 1M
x16bit
16M DRAM
EDO 1M
x16bit
256K SRAM
32Kx8bit
HD6417708S
64M SDRAM
512Kx32bitx4bank
16M Flash
1Mx16bit
32M Flash
2Mx16bit
MBM29DL324B
BU
S
Controller
& I/O P
o
rt
Gr
aphics
Ov
er
la
y
ASIC
16M SDRAM
512K
x16bitx2bank
Pre-Filter
ASIC
Video
Encoder
CXD1913A
Q
Video
Decoder
HMP8117
Echo
Canceller1
DSP56303
Echo
Canceller2
DSP56303
256K SRAM
256K SRAM
256K SRAM
32Kx8bit
256K SRAM
256K SRAM
256K SRAM
32Kx8bit
A
udio Codec
uPD77019
A
udio Codec
uPD77019
ADC
,D
A
C
AK4520
TDM ASIC
&
Buff
er
I-Interf
ace
HD81504
256K SRAM
32Kx8bit
256K SRAM
32Kx8bit
VCO
,PLL &
Ser
ial Timing
Gener
ator
LPF
LPF
Amp &
75or
m
Dr
iv
er
Amp
Amp
Amp
Amp
LPF
LPF
Tr
ans
Tr
ans
LPF
Buff
er
SIRCS
Enc/Decoder
Cloc
k&Timing
Cloc
k&Timing
Cloc
k&
Timing
Data
Data
Cloc
k&Sync
Data
Sync
Sync
Data
Sync
Data
Cloc
k
3.3 -> 5V
Y
C
Y C
Comp
.
PCMCIA
Comp
.
Comp
.
(DE-54 board)
Y C
Y C
Inter
nal
Mic.
Exter
nal
Mic.
LINE
LINE
OSC
54MHz
OSC
40MHz
OSC
7.5MHz
OSC
40MHz
OSC
7.5MHz
BRI 2B
Cloc
k
12.288
MHz
Cloc
k&Timing
Data
Timing
Data
V.35
Optional
BRI 4B Optional
(Camer
a)
SIRCS in (Camer
a,
RX-47 board)
SIRCS out
(IR Repeater)
5 <->
3.3V
Cloc
k&
Timing
Data
Data
Cloc
k
&
Timing
XR16C850
& Buff
er
3.6864
MHz
Buff
er
Buff
er
3.3 <-> 5V
Vcc=5V
Vcc=10V
ST16C550
& Buff
er
Buff
er
T.120
Camer
a Ctr
l.
Diag P
or
t
Cloc
k&Timing
Data
+12V
+5V
+3.3V
Vcc=5V
-2
3.3V
BU
S
Cloc
k 27MHz
32.768
kHz
Interr
upt
8kHz
+3.3V
-2
+5V
-2
Voltage
+10V
+9V
Vcc=3.3V
Vcc=3.3V
-2
Vcc=5V
Vcc=5V
-2
8x8 VCP
e
x
64M SDRAM
1M
x16bitx4bank
Do
wnload I/F
Cloc
k&
Timing
Data
Data
4M SRAM
256K
x16bit
4M SRAM
256Kx16bit
Vcc=10V
Vcc=5V
-2
C
Y
Y
Au
x
Data
Data
Data
Cloc
k&Timing
I
2
C B
U
S
5V B
U
S
Interr
upt
Buff
er
Optional
Board B
U
S
Sleep
,
Standb
y
Sleep
Standb
y
Step Do
wn
DC-DC
Con
ve
rter
Voltage
Regur
ator
to DE-54
Board
Amp
Inter
nal
Speak
er
Buff
er
Vcc=3.3V
-2
Vcc=3.3V
Vcc=5V
LED
Vcc=3.3V
-2
Vcc=3.3V
-2
Vcc=3.3V
-2
Vcc=3.3V
-2
Vcc=3.3V
-2
Vcc=5V
1
2
3
4
5
6
7
8
9
!/
!-
!=
![
!]
!\
1
CPU BLOCK
2
PCMCIA BLOCK
3
SIRCS BLOCK
4
NETIF BLOCK
5
BRI BLOCK
6
PWR BLOCK
7
UART BLOCK
8
VCP BLOCK
9
VIDAD BLOCK
!/
VIDIN BLOCK
!-
VIDDA BLOCK
!=
VIDOUT BLOCK
![
EC BLOCK
!]
AC BLOCK
!\
AUANA BLOCK
Fig. 3-4 MA-97 Board Function Dividing
3-2. Circuit Description of the Respective Boards
Summary of Contents for PCS-1500
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