DVR-640H-S
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7.2 IC
PMC007A8 (TUJB ASSY : IC101)
• TUNER Microcomputer
Pin Function
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
List of IC
No.
Mark
Pin Name
I/O
Pin Function
1
PA3/SO8
FLDATA
O
Communication line with FL driver From tuner controller to FL driver
2
PA4/SI8/SB8
FLSTB
O
Communication strobe signal with FL driver
3
PA5/SCK8
FLCLK
O
Communication clock with FL driver
4
P70/INT0/T0LCP
WDT
I
WDT for microcomputer runaway detection RC is external connection. H: Forced reset
5
P71/INT1/T0HCP
ACDET
I
Existence detection of AC power Level interrupt
6
P72/INT2/T0IN/T0LCP
HS_MTOT
I
System controller communication handshake From system controller to Tuner controller
7
P73/INT3/T0IN/T0HCP
IR
I
Pulse input of the remote control unit
8
RES#
XTRESET
I
Reset input
9
XT1
XT1
I
Sub clock connection 32.768kHz
10
XT2
XT2
O
Sub clock connection
11
VSS1
GND
−
Ground
12
CF1
CF1
I
Main clock connection 15MHz
13
CF2
CF2
O
Main clock connection
14
VDD1
VDD1
−
Power supply
15
P80/AN0
MODEL1
AI Input 1 for destination judgment
16
P81/AN1
MODEL2
AI Input 2 for destination judgment
17
P82/AN2
KEY1
AI Main unit key input 1
18
P83/AN3
KEY2
AI Main unit key input 2
19
P84/AN4
KEY3
AI Main unit key input 3
20
P85/AN5
AGC
AI AGC voltage input from the tuner For simple check
21
P86/AN6
BATTERY
AI Input for battery voltage check Can measure only during 5V operation
22
P87/AN7
FUNC
AI SCART Function signal input
23
P10/SO0
SDET3
I
Plug detection of S terminal 3
24
P11/SI0/SB0
SDET2
I
Plug detection of S terminal 2
25
P12/SCK0
SDET1
I
Plug detection of S terminal 1
26
P13/SO1
AVLOUT
O
NexTViewLink output signal Negative logic Reverse on the SCART terminal
27
P14/SI1/SB1
SDA
O/D IIC communication (data)
28
P15/SCK1
SCL
O/D IIC communication (clock)
XSYSRST
O
IC reset signal of whole system
TUDET
I
The old and the new distinction of the tuner pack L: New tuner, H: Old tuner
MUTEV
O
CVBS for video driver IC and Y/C mute signal L: Mute, H: Release Fix to L because mute does not control.
IRB_EN
I
IR blaster function valid selection Open: IR blaster invalidity, GND: IR blaster is valid
AMUTE2
O
Audio mute signal of output stage Negative logic H: Release, L: Mute
SELV1
O
Input switch of video selector INSEL 1 of LA73031
SELV2
O
Input switch of video selector INSEL 2 of LA73031
SELV3
O
Input switch of video selector INSEL 3 of LA73031
YVSEL
O
CVBS or Y/C switch of video selector YOUT-SEL of LA73031
SWSTBY
O
Standby mode switch of video selector Fix to L output because the standby mode is not used.
GND
−
Ground
40
VDD4
VDD4
−
Power supply
PMC007A8, UPD61272F1-107KA3A, PCA9557PW, TDOTG242-0F0C8
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