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