MICROPROCESSOR TERMINAL DESCRIPTIONS -1
TX-SR876/SA876
Q7001: M3087BFLBGP
SIRIUS UART data output
SIRIUS IC reset
Fan control output
CEC input
XM UART data output
XM UART data input
XM IC reset
XM IC 3B/4A input
RDS serial clock input
RDS serial data input
FM STEREO detect
FM tuned detect
Not used
HD Radio reset control
Connect to Vss
Connect to Vss
Not used
Not used
Reset input
Oscillator output(8.00MHz)
GND
Oscillator input(8.00MHz)
Power 3.3V)
Connect to Vcc
POFF input
POFF input
Key interrupt input
CEC trigger input
CEC output
Clock output to Zone2/3 Volume IC
Data output to Zone2/3 Volume IC
3B/4A input from XM IC
Lock state input from HQV
Lock status output to HQV
Request output to HQV
HQV UART data input
HQV UART data output
RS232 UART data output/Flash memory rewrite pin
Power 3.3V)
RS232 UART data input/Flash memory rewrite pin
GND
Flash memory rewrite pin
Flash memory rewrite pin
(NET UART data output)
(NET UART data input)
(NET reset output)
Not used
E2PROM chip select output
E2PROM serial data input
E2PROM serial data output
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Pin Name
Pin No.
I/O
Act.
Description
SRTXD
~SRRST
FANCTRL
CECIN
XMTXD
XMRXD
~XMRST
XMANT
~RDSCLK
RDSSDI
~STEREO
~SD
(~TUNDACRST)
~HDRST
BYTE
CNVss
(~NETBOOT)
(~NETSTATUS)
~RESET
Xout
Vss
Xin
Vcc
~NMI
~POFF
~POFF2
~KEYINT
CECTRG
CECOUT
Z2VOLCLK
Z2VOLSDO
XMLNK
VSPINT
~VSPRST/VDLOCK
VSPREQ
VSPRxD/VSPSCL
VSPTxD/VSPSDA
RS232TxD/FTxD
Vcc
RS232RxD/FRxD
Vss
FCLK
FBUSY
NETTxD
NETRxD
~NETRST
(NETRSV)
~ROMCS
ROMSDI
ROMSDO
O
O
O
I
O
I
O
I
I
I
I
I
O
O
I
I
O
I
I
O
I
I
I
I
I
I
I
I
O
O
O
I
I
O
O
I/O
I/O
O
I
I
I
O
O
O
I
O
O
O
I
O
H
L
D/A
H
H
H
L
L
CLK
H
L
L
L
L
---
---
L
L
L
CLK
---
CLK
---
L
L
L
L
H
H
H
H
H
H
L
H
H
H
H
---
H
---
H
H
H
H
L
H
L
H
H
