Marantz SA-12S1, Руководство по обслуживанию

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151
DSP for CD and DVD-ROM systems
SAA7335
da1 41 I/O sub-CPU data bus bit 1 input/output (parallel)
n.c. 42
−
not connected, reserved
da0 43 I/O sub-CPU data bus bit 0 input/output (parallel)
V
DDD4
44 supply digital supply voltage 4
V
SSD4
45 supply digital ground 4
WRi 46 I sub-CPU write enable input (active LOW)
RDi 47 I sub-CPU read enable input (active LOW)
ALE 48 I sub-CPU address latch enable input
CSi 49 I sub-CPU chip select input (active HIGH)
STOPCLOCK 50 O stop clock output
n.c. 51
−
not connected, reserved
V4 52 O serial subcode output (for CD)
EBUOUT 53 O digital audio output
SYNC 54 O I
2
S-bus sector sync output
FLAG 55 O I
2
S-bus correction ?ag output
DATA 56 O I
2
S-bus serial data output
BCLK 57 I/O I
2
S-bus bit serial clock input/output
WCLK 58 I/O I
2
S-bus word clock input/output
V
DDD5
59 supply digital supply voltage 5
V
SSD5
60 supply digital ground 5
RAMRW 61 O RAM read/write control output
n.c. 62
−
not connected, reserved
RAMDA7 63 I/O RAM data bus bit 7 input/output
RAMDA6 64 I/O RAM data bus bit 6 input/output
RAMDA5 65 I/O RAM data bus bit 5 input/output
RAMDA4 66 I/O RAM data bus bit 4 input/output
RAMDA3 67 I/O RAM data bus bit 3 input/output
RAMDA2 68 I/O RAM data bus bit 2 input/output
n.c. 69
−
not connected, reserved
RAMDA1 70 I/O RAM data bus bit 1 input/output
RAMDA0 71 I/O RAM data bus bit 0 input/output
V
DDD6
72 supply digital supply voltage 6
V
SSD6
73 supply digital ground 6
RAMAD0 74 O RAM address bit 0 output
RAMAD1 75 O RAM address bit 1 output
RAMAD2 76 O RAM address bit 2 output
RAMAD3 77 O RAM address bit 3 output
RAMAD4 78 O RAM address bit 4 output
RAMAD5 79 O RAM address bit 5 output
RAMAD6 80 O RAM address bit 6 output
V
DDD7
81 supply digital supply voltage 7
SYMBOL PIN TYPE DESCRIPTION