UX-P410TH/FO-P610TH/NX-P160TH
12) Video Processing20) Power Up/Down Control
The CX06835 supports two modes of shading correction for scannerPower Up/Down detection is provided internally. The threshold voltages
data non-uniformity arising from uneven sensor output or uneven illumi-are:
nation. Corrections are provided on either an 8-pixel group or are ap-Y Power Up detection level = 2.83V to 2.95V.
plied separately to each pixel. Dark level correction and gamma correc-An internally generated power down signal controls internal switching
tion are also provided.between primary and battery power. This control signal is also provided
Two-dimensional Error Diffusion/Dithering is performed on halftone im-as an output on the PWRDWNn pin. An externally generated power
ages.down detector (optional) can be provided as an input on the PWRDWNn
The CX06835 includes an 8 x 8 dither table, which is programmable andpin by setting the INTPWRDWNEn pin.
stored internally (8-bit per table entry). The table is arranged in a matrix
21) Stand-by and Sleep Modes
of 8 rows by 8 columns. The video processing circuit provides mixed-
mode detection/processing and multi-level Resolution Conversion forTwo power saving modes are provided to reduce the power consump-
the scanner multi-level data. The conversion ratio of the multi-level Reso-tion. In stand-by mode, the CPU is functional, but the modem clock is
lution Conversion is fixed to B4-A4 conversion.turned off to save power. When this occurs, the modem may be acti-
vated by software under different conditions. In sleep mode, the clock is
13) Operator Panel Interface
cut off from both the modem and the CPU to increase the power sav-
Operation Panel functions are supported by the operator output busings.
OPO[6:0], the operator input bus OP[3:0], and two control outputsThe system can be activated by paper insertion, key pressing events,
(LCDCS and LEDCTRL).and telephone ring detection.
The CX06835 can directly interface to a 28-key keypad.
22) Embedded Modem DSP
A 2-line LCD display module with 20 characters per line can be sup-
ported.The embedded modem DSP is a synchronous 9600 bps half-duplex
modem with error detection and DTMF generation/reception. It provides
14) Synchronous Serial Interface (SSIF)data transmission/reception from regular PSTN lines, PBX, or private
One or optionally two Synchronous only Serial Interfaces (SSIF) arelines.
built into the CX06835, which allows it to communicate with externalThe modem can operate at any standard V.29 data speed up to 9600
peripherals. Each SSIF provides separate signals for Data (SSTXD,bps as well as in V.21 and V.23 modes.
SSRXD), Clock (SSCLK), and Status (SSSTAT). Each SSIF is a duplex,The modem is designed for use in Group 3 facsimile machines. It satis-
three-wire system. The SSIF may be configured to operate as either afies the requirements specified in ITU-T recommendations V.29, V.27ter,
master or a slave interface. The bit rate, clock polarity, clock phase, andV.21 Channel 2, and T.4 , and meets the signaling requirements of T.30.
data shifting order are programmable.It also performs HDLC framing according to T.30 at all speeds.
15) Synchronous/Asynchronous Serial Interface (SASIF)
Note: For technical details, refer to the FM209/FM214 DesignerOs Guide,
One or optionally two Synchronous/Asynchronous Serial Interface(document 1175).
(SASIF) performs the following:
Y Serial-parallel conversion of data received from a peripheral device.23) Software and Firmware Support Features
Y Parallel-to-serial conversion of data for transmission to a peripheralAvailable software and embedded firmware provides the following:
device.Y Modem support for speeds up to 9600 bps.
This interface consists of serial transmit data (SASTXD), serial receiveY ECM under conditional assembly.
data (SASRXD), and a serial clock(SASCLK). The SASIF includes aY DRAM memory support under conditional assembly.
programmable bit rate generator for asynchronous and synchronousY MH, MR and MMR support.
operations. The data shifting order, data bit number, and the SASCLKY Page memory receiving.
polarity are programmable.Y 5 ms minimum scan line time.
The optional SASIF 2 has an additional pin called DSS_AVYAIL. This Conditional Error Diffusion or Dither table (8x8) support.
signal can be used to tristate the SASCLK2 and SASTXD2 signals.Y Dark Level Correction support.
16) Real Time Clock (RTC)Y Single motor support.
Y 28-key operator panel support.
The CX06835 includes a battery backup real time clock. The RY Call progress support for Europe and U.S.A.TC will
automatically maintain the proper date and time for 32 years. Leap yearY Monochrome inkjet print engine support.
compensation is included. A 32.768 kHz or 65.536 kHz crystal is re-
quired by the RTC.
17) Tone Generator (ALT_TONE)
The CX06835 provides a programmable tone generator output. The fre-
quency of the tone generator is programmable from 400 Hz to 4 kHz. By
using a PWM programmable high frequency as a modulation frequency,
the output level can be made programmable.
18) Watchdog Timer
The Programmable Watchdog Timer is intended to guard against
firmware lockup on the part of either executive-controlled background
tasks or interrupt-driven tasks, and can only be enabled by a sequence
of events under control of the Watchdog Control Logic. Once the Watch-
dog Timer has been enabled, it can not be disabled unless a system
reset occurs.
19) Reset and Power Control
The RESETn I/O pin provides an internally generated reset output to
external circuits, or it can accept an externally generated reset signal.
This reset signal will not reset the RTC. Separate RTC battery power
inputs are provided for battery-backup functions. A BATRSTn pin is pro-
vided, which resets the RTC circuits and other SCC circuits.
5 � 3 |
ACEC
