JVC RX-7030VBK Service Manual page 36

4.28 UPD784215AGC196 (IC581) : CPU
• Pin layout
100
1
25
26
• Pin function
Pin No. Symbol
1
2
3
4
5
6
7
8
9 VDD
10 X2
11 X1
12 VSS
13 XT2
14 XT1
15 RESET
16
17 ERF
18
19
20
21
22
23 AVDD
24 AV REF0
25 7030/8030
26 CS1
27 CS2
28 CS3
29 CS4
30
31
32
33 AVSS
34
35
36 AV REF1
37 RX
38
39
40 DSP_COM
41 DSP_STB
42 DSP_CLK
43 DSP_RDY
44
1-36 (No.22058)
76
75
51
50
I/O
- Open
- Open
- Open
- Open
- Open
- Open
- Open
- Open
- +3.0V
- Main system clock input
I Main system clock input
- Ground
- Open
- Connect to ground
I Reset INPUT
I 96/24 OPERATION input
I ERROR input (UNLOCK detect)
- Connect to ground
- Connect to ground
- Connect to ground
- Connect to ground
- Connect to ground
- +3.0V
- Ground
I
I CHIP SELECT INPUT PORT (Pull down with 10kΩ resistor)
I CHIP SELECT INPUT PORT (Pull down with 10kΩ resistor)
I CHIP SELECT INPUT PORT (Pull down with 10kΩ resistor)
I CHIP SELECT INPUT PORT (Pull down with 10kΩ resistor)
- Connect to ground
- Connect to ground
- Connect to ground
- Ground
- Open
- Open
- +3.0V
O For flash memory writing terminal (Pull down with 10kΩ resistor)
- Open
- Open
I HOST DATA IN (Serial 1)
O HOST DATA OUT (Serial1)
I HOST CLOCK (Serial1)
O HOST READY
- Open
Function