Read Panasonic KX-DT521RU Service Manual online
61
KX-DT521RU/KX-DT521RU-B
14.1.2.
IC300
Pin No. Terminal Name
Function
I/O Setting Contents of Control
Remarks
1
RSTN
RESET
I
Reset input
2
OSR
PCM_TXD
I
PCM Receive data input from IC410
PCM communication port
3
OEP0
PCM_FSYNC
O
PCM Frame sync signal
PCM communication port
4
OEP1
NC
O
Not in use
5
OSYNC
NC
O
Not in use
6
VSS1
DG
-
Digital system ground
7
OCLK
PCM_SCLK
O
PCM Clock
PCM communication port
8
OSX
PCM_RXD
O
PCM Send data output to IC410
PCM communication port
9
SPITX
SPI2_DI
O
SPI2 Serial data output
SPI2 communication port
10
SPIRX
SPI2_DO
I
SPI2 Serial data input
SPI2 communication port
11
SPICLK
SPI2_CLK
I
SPI2 Clock
SPI2 communication port
12
SPICS
SPI2_CS
I
SPI2 Chip select
SPI2 communication port
13
CK4M
CK4M
O
2.048MHz serial clock
For ASIC2 (IC205)
14
VSS2
DG
-
Digital system ground
15
GPIO0
NC
O
Not in use
16
VSS3
DG
-
Digital system ground
17
GPIO1
NC
O
Not in use
18
GPIO2
NC
O
Not in use
19
VDD1
VCC33
-
Digital system power supply (+3.3V)
20
GPIO3
GPIO3
O
DXDP constant current switching port
"H:40mA, L:20mA"
21
DVRL
DVRL
I
Reference voltage for comparator
For DXDP
22
DDR
DDR
I
Receive data input
For DXDP
23
DVRH
DVRH
I
Reference voltage for comparator
For DXDP
24
NC1
NC1
-
Not in use
25
GPIO4
GPIO4
O
DXDP constant current control port
H:Constant current circuit ON
26
PVRL
PVRL
I
Reference voltage for comparator
27
PDR
PDR
I
Receive data input
28
PVRH
PVRH
I
Reference voltage for comparator
29
NC2
NC2
-
Not in use
30
VDD2
VCC33
-
Digital system power supply (+3.3V)
31
VSS4
DG
-
Digital system ground
32
PDX1
PDX1
O
Send data output
33
PDX0
PDX0
O
Send data output
34
GPIO5
NC
O
Not in use
35
GPIO6
NC
O
Not in use
36
GPIO7
NC
O
Not in use
37
VSS5
DG
-
Digital system ground
38
OSI
OSI
I
Crystal oscillator connection (16.384MHz)
39
OSO
OSO
O
Crystal oscillator connection (16.384MHz)
40
VSS6
DG
-
Digital system ground
41
INTN
INTN
O
Interrupt signal output to IC410
42
VSS7
DG
-
Digital system ground
43
VDD3
VCC33
-
Digital system power supply (+3.3V)
44
NC3
NC3
-
Not in use
45
STEST0
DG
I
Not in use
46
STEST1
DG
I
Not in use
47
DDX0
DDX0
O
Send data output
For DXDP
48
DDX1
DDX1
O
Send data output
For DXDP
IC300
13
CK4M
14
VSS2
15
GPIO0
16
VSS3
17
GPIO1
18
GPIO2
19
VDD1
20
GPIO3
21
DVRL
22
DDR
23
DVRH
24
NC1
25 GPIO4
26 PVRL
27 PDR
28 PVRH
29 NC2
30 VDD2
31 VSS4
32 PDX1
33 PDX0
34 GPIO5
35 GPIO6
36 GPIO7
26 PVRL
27 PDR
28 PVRH
29 NC2
30 VDD2
31 VSS4
32 PDX1
33 PDX0
34 GPIO5
35 GPIO6
36 GPIO7
37
VSS5
38
OSI
39
OSO
40
VSS6
41
INTN
42
VSS7
43
VDD3
44
NC3
45
STEST0
46
STEST1
47
DDX0
48
DDX1
1
RSTN
2
OSR
3
OEP0
4
OEP1
5
OSYNC
6
VSS1
7
OCLK
8
OSX
9
SPITX
10
SPIRX
11
SPICLK
12
SPICS
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