Sony PCS-1500 Service Manual page 114

3-2. Circuit Description of the Respective Boards
LVHA1-3
\HRD_VCP
\HWR_VCP
from/to
LVHD0-15
CPU BLOCK
IRQ_VCP
\RES_VCP
from X300
40MHz
AUX7_VCP
AUX6_VCP
from/to
ACLK_VCP
AC BLOCK
ATFS_VCP
ARFS_VCP
AOUT_VCP
3-24
VCPex(IC300)
8x83606AK
HA -HA
0 2
3
\HREAD
\HWRITE
HD -HD
0 15
16
N.C \HRDREQ
N.C \HWRREQ
HIRQ
\RESET
CPUCLK
AUX7
AUX6
ACLK1
ATFS
ARFS
ADT
AIN_VCP ADR
Fig. 3-13 Host I/F, Memory I/F, TDM I/F and AUDIO I/F of VCPex
\LCE0
A -A
2 19
18
\LOE
\WE
\BE0
\BE1
D -D
0 31
32
\BE2
\BE3
MA -MA
0 9
10
\RAS0
\RAS1
\CAS
\DRAMWE
MD -MD
0 31
32
TDMFS VCP_TDMFS
TDMCK VCP_TDMCK
TDMDR VCP_TDMDR
TDMDX VCP_TDMDX
4Mbit SRAM(IC301,302)
(256Kx16bit x 2)
\CS
A -A
0 17
18
\OE
\WE
\BLE
\BHE
D -D
0 15
I/O -I/O
0 15
16
\CS
A -A
0 17
18
\OE
\WE
\BLE
\BHE
D -D
16 31
I/O -I/O
0 15
16
16Mbit DRAM(IC303-306)
(1Mx16bit x 4)
A -A
0 9
10 -A
0 9
\RAS
\LCAS
\UCAS
\WE
MD -MD
0 31
DQ -DQ
0 15
32 -DQ
0 15
\OE
A -A
0 9
10 -A
0 9
\RAS
\LCAS
\UCAS
\WE
MD -MD
0 31
DQ -DQ
0 15
32 -DQ
0 15
\OE
from/to
NETIF BLOCK
PCS-1500/1500P