SM5856A1F – COMPRESSION-TYPE ANTI-SHOCK MEMORY CONTROLLER (NPC)
Pin
Name
Direction
Description
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
1
VDD
+3.5
supply voltage
2
UC1
µP interface extension I/O line 1
3
UC2
µP interface extension I/O line 2
4
UC3
µP interface extension I/O line 3
5
UC4
µP interface extension I/O line 4
6
UC5
µP interface extension I/O line 5
7
NTEST1
+3.5
test input1
8
NTEST2
+3.5
test input2
9
CLK
CD7
→
NPC
16.9344MHz clock input
10
VSS
GND
ground
11
YSRDATA
CD7
→
NPC
audio serial data input
12
YLRCK
CD7
→
NPC
audio serial L/R clock input
13
YSCK
CD7
→
NPC
audio serial bit clock input
14
ZSCK
NPC
→
DAC
audio serial bit clock output
15
ZLRCK
NPC
→
DAC
audio serial L/R clock output
16
ZSRDATA
NPC
→
DAC
audio serial data output
17
YFLAG
→
NPC
signal processor IC RAM overflow flag
18
YFCLK
GND
crystal-controlled frame clock input
19
YBLKCK
NPC
→
µP
subcode block clock signal output
20
RESET
µP
→
NPC
system reset input (active low)
21
ZSENSE
NPC
→
µP
µP interface status output
22
UC6
µP interface extension I/O line6
23
YDMUTE
GND
forced mute input
24
YMLD
µP
→
NPC
µP interface latch clock input
25
YMDATA
µP
→
NPC
µP interface serial data input
26
YMCLK
µP
→
NPC
µP interface shift clock input
27
OE
NPC
→
DRAM OE control output (active low)
28
CAS
NPC
→
DRAM
DRAM CAS control output (active low)
29
D2
NPC
↔
DRAM
DRAM data input/output 2
30
D3
NPC
↔
DRAM
DRAM data input/output 3
31
D0
NPC
↔
DRAM
DRAM data input/output 0
32
D1
NPC
↔
DRAM
DRAM data input/output 1
33
WE
NPC
→
DRAM
DRAM WE control output (active low)
34
RAS
NPC
→
DRAM
DRAM RAS control output (active low)
35
A9
NPC
→
DRAM
DRAM address output 9
36
A8
NPC
→
DRAM
DRAM address output 8
37
A7
NPC
→
DRAM
DRAM address output 7
38
A6
NPC
→
DRAM
DRAM address output 6
39
A5
NPC
→
DRAM
DRAM address output 5
40
A4
NPC
→
DRAM
DRAM address output 4
41
A0
NPC
→
DRAM
DRAM address output 0
42
A1
NPC
→
DRAM
DRAM address output 1
43
A2
NPC
→
DRAM
DRAM address output 2
44
A3
NPC
→
DRAM
DRAM address output 3
3-3
CS 46 443
