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Micro processor:
Enhanced MC19 central processing unit (CPU).
The CPU provides fast instruction execution and memory efficient input/output bit manipulation.
Motor control:
provided to external current drivers for scanner/printer motor control.
Expansion bus control:
Address, data, control, status, and decoded chip select signals support connection to the external ROM, RAM and optional
peripheral device.
Operator interface:
_ Support the operator key control and LED indicator.
Video control:
The video control function provides for controlling the scanner and for processing its video output.
T4 compressor / decompressor:
provides MH compression/decompression per CCITT recommendation T.4.
Video processing:
performs shading correction to correct the scanner data for non-linearities in the scanner sensor and light source.
2) IFC-P (integrated Facsimile Controller Personal) Pin Description
[| PinNo. =|
Name
| ——"'C*C'éSecrition
s—$— |=
—"'CSCSC*s*z
| 1-3
[| A10-A8
_|_System bus address 10-8
| 5-12 _—~*| A7-AO _|_ System bus address 7 - 0
RTC (U14) chip select
| 18
sd
/SYSCLK
| _ tis driver clock (12MHz) for U1 and supplied from U9(Modem).
| 20
~~ ~*«| ™cS___—*| MODEM(U9)chipselect
=
—i('"'S;S™*™S*'*r
| 26
~~ ~~~*| /PORES _| When Vcc(+5V) goes down below 4.5V this signalbecomesiow.
|
28
GPIO8
30
GPIO7
Used to control the CML Relay.
31
GPIO6
Used to control the +24V from POWER.
32
GPIO5
Used to check the hook-off of TAD handset.
33
GPIO4
Used to control the DP relay.
|
34
GPIO3
Used to control the MUX.
35
GP102
Used to check the hook-off of handset.
36
GPIO1
Used to detect the MODE switch.
37
GPIOO
Used to detect whether document loaded or not.
38°
TONE
Generated 800Hz key-click sound.
41
PM2/GPO2
Used to control the tone.
| 42
PM1/GPO1
Used to control the sound.
|
43
PM0/GPOO
Used to control that the system is remote mode or not.
|
44 - 47
-_SM3-0
Scan motor phase 3 - 0
|
48
TADG
THD A/D analog ground
|
49
THDI
THD A/D input
50
TADV
A/D analog power (+5V)
51 - 52
STRBO - 1
Printer strobe 0 - 1
54-55
STRB2 - 3
Printer strobe 2 - 3
PTR strobe polarity. When connected +5V strobe is active low.
When connected ground strobe is active high.
Printer data latch
58
PCLK
Printer data clock
Printer data
Used to detect whether the system is DP mode or DTMF mode.
Used to detect whether thermal paper is or not.
Analog video input.
Region selection signal for peak value extraction of input signal.
STBPOL
63
ADD2/GPI2
6
ADD1/GPH1
4
65
ADDO
[| 67
|sCVIDCTLI
30
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