
1
2
3
4
5
6
7
A
B
C
D
E
F
G
7
6
5
4
3
2
1
G
F
E
D
C
B
A
Title: Digital AV Decoder
Approved by:
Drawn by:
File Name:
Path: M:\IanS\temp\temp.ddb - Documents\SC011B91.SCH
Print date:
Drawn date:
Issue:
Sheet of
2-Apr-2008
0
Huntingdon, United Kingdom.
This drawing is the intellectual property of Cyrus Electronics Ltd.
O
c
Description:
11
13
11
Sheet
Host Micro-controller
1-Apr-1999
Cummins/Sells
R1101
10M
C1108
22p
VS
S
1
M
ODB
2
M
ODA
3
STRA
/A
S
4
E
5
R/W
6
EX
TA
L
7
XTAL
8
PC0
9
PC1
10
PC2
11
PC3
12
PC4
13
PC5
14
PC6
15
PC7
16
RESET
17
XIRQ
18
IRQ
19
PD0
20
PD
1
21
PD
2
22
PD
3
23
PD
4
24
PD
5
25
VDD
26
PA
7
27
PA
6
28
PA
5
29
PA
4
30
PA
3
31
PA
2
32
PA
1
33
PA0
34
PB7
35
PB6
36
PB5
37
PB4
38
PB3
39
PB2
40
PB1
41
PB0
42
PE0
43
PE4
44
PE1
45
PE5
46
PE2
47
PE6
48
PE3
49
PE7
50
VR
L
51
VR
H
52
MC68HC11A8
IC1104
MC68HC11A1
X1101
KBR8.0M
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A8
25
A9
24
A10
21
A11
23
A12
2
A13
26
A14
27
OE
22
CE
20
VPP
1
D0
11
D1
12
D2
13
D3
15
D4
16
D5
17
D6
18
D7
19
VC
C
28
GND
14
IC1103
28-pin 0.6" socket
Fit 27C256-120 EPROM during assembly
D0
2
Q0
19
D1
3
Q1
18
D2
4
Q2
17
D3
5
Q3
16
D4
6
Q4
15
D5
7
Q5
14
D6
8
Q6
13
D7
9
Q7
12
OE
1
LE
11
GND
10
VC
C
20
IC1101
MC74HC573ADW
C1109
47n
GND
GND
GND
+5Vmem
GND
+5Vc11
+5Vc11
+5V
C1107
22p
GND
C1105
47n
R1102
1k
GND
C1111
10n
GND
/hc11RESET
R1104
100k
GND
/hc11RESET
spi SCK
spi MOSI
spi MISO
hc11LE
hc11RnotW
hc11E
hc11LE
L1102
1.0u-FSL
GND
C1103
47n
GND
C1104
47u
6.3V
+5V
L1101
1.0u-FSL
GND
C1101
47n
GND
C1102
47u
6.3V
+5V
MC-BUS IN
MC-BUS OUT
hc11D0
hc11D1
hc11D2
hc11D3
hc11D4
hc11D5
hc11D6
hc11D7
hc11D0
hc11D1
hc11D2
hc11D3
hc11D4
hc11D5
hc11D6
hc11D7
hc11A0
hc11A1
hc11A2
hc11A3
hc11A4
hc11A5
hc11A6
hc11A7
hc11A8
hc11A9
hc11A10
hc11A11
hc11A12
hc11A13
hc11A14
RotaryEncoder[1]
RotaryEncoder[0]
RemoteControl
R1103
47k
hc11A8
hc11A9
hc11A10
hc11A11
hc11A12
hc11A13
hc11A14
hc11A15
/SS codec
/SS dsp
EnableWriteRegs
To Expansion Registers
C1106
47n
MicrophoneLevel
MicrophoneInserted
KeyPadInput
RP1101
CAT16-470J4
47R
RP1104A
CAT16-470J4
+5V
R
P
1105
C
A
T16-470J
4
R
P
1106
C
A
T16-470J
4
R
P
1107
C
A
T16-470J
4
RP1103
CAT16-470J4
RP1102
CAT16-470J4
/dspINTREQAutoBoot
Strobe dspPROM
/HardMuteOutputs
+5Vmem
+5Vc11
hc11D0
hc11D1
hc11D2
hc11D3
hc11D4
hc11D5
hc11D6
hc11D7
GND
C1110
47n
GND
+5Vmem
hc11A0
hc11A1
hc11A2
hc11A3
hc11A4
hc11A5
hc11A6
hc11A7
hc11A8
hc11A9
hc11A10
/CE RAM
/CE ROM
/WRITE
/READ
/READ
RP1104B
RP1104C
RP1104D
VC
C
/RST
GND
150ms
DELAY
5.5k
VCC
SENSE
IC1105
DS1811-15
GND
+5Vc11
hc11A15
spi MISObuff
Buffered by IC501
PE3 (analogue input) reads bi-directional line, performing the 3V3 to 5V level shift
A0
8
A1
7
A2
6
A3
5
A4
4
A5
3
A6
2
A7
1
A8
23
A9
22
A10
19
OE
20
CE
18
D0
9
D1
10
D2
11
D3
13
D4
14
D5
15
D6
16
D7
17
VC
C
24
GND
12
WE
21
IC1102
HT6116-70S
2Kx8 bit 16K RAM