User Guide

RH-10
System Module CCS Technical Documentation
Page 18 Nokia Corporation Confidential Issue 1 09/2002
Flash Memory
Introduction
Flash memory is a high-performance, 32-Mbit, single power supply 1.8 Volt-only FLASH
memory device. This device is designed to be programmed in-system with the standard
system 1.8-volt Vcc supply. A 12.0 volt Vpp is not required for program or erase opera-
tions, although an acceleration pin is available if faster write performance is required.
The device is a boot-sectored device, consisting of eight 8Kb and 63 sectors of 64Kb
each.
The device has two read modes: asynchronous read and burst mode read. Device powers-
up in an asynchronous read mode. In the asynchronous mode, the device has two control
functions which must be satisfied in order to obtain data at the outputs. In the linear
mode, the device will deliver a continuous sequential word stream starting at the speci-
fied word and continuing until the end of the memory or until the user loads in a new
starting address or stops the burst advance. The burst mode read operation is a synchro-
nous operation tied to the rising edge of the clock. The microprocessor supplies only the
initial address; all subsequent addresses are automatically generated by the device at the
rising edge of subsequent clock cycles. The burst read cycle consists of an address phase
and a corresponding data phase. The device also is capable of Burst Suspend and Burst
Resume operations.
In order to reduce the power consumption on the bus, a Power Save function is intro-
duced. This reduces the amount of switching on the external bus.
User Interface Hardware
LCD
Introduction
RH-10 uses black & white GD51 96x65 full dot-matrix graphical display. The LCD module
includes LCD glass, LCD COG-driver, elastomer connector, and a metal frame. LCD module
is included in the light guide assembly module.
Interface
LCD is controlled by UI SW and control signals.
Booster capacitor (C302 1uF) is connected between booster pin (Vout) and ground. The
capacitor stores boosting voltage.
Pin 9 (GND) is the metal frame ground pin, so it is not coming from the display driver.
Keyboard
Introduction
RH-10 keyboard design is Nokia Jack style, with up and down navigation keys, two soft
keys, 12 number keys, and side volume keys. The PWR key is located on top in IR lens.