CONFIDENTIAL – DO NOT COPY
Page 8-
6
File No. SG-0199
On Chip Microcontroller:
The
FLI8532
on-chip micro-controller (OCM) serves as the system micro-controller.
It programs the FLI8532 and manages other devices in the system such as the keypad and
non-volatile RAM (NVRAM) using general-purpose input/output (GPIO) pins.
The OCM can address a 22-bit address space to utilize 4 MB external ROM
Figure 8-5 FLI8532 OCM block diagram
The OCM executes a firmware program running from external ROM, as well as driver-level
(or Application Programming Interface – API) functions residing in internal ROM.
This is illustrated above. A parallel port with separate address and data busses is available
for this purpose. This port connects directly to standard, commercially available ROM or
programmable Flash ROM devices in either 8 or 16-bit configurations. External Flash-ROM
memory requirements range from 512Kbytes to 4Mbytes depending on the application.
Both firmware and OSD content must be compiled into a HEX file and then loaded onto the
external ROM. The OSD content is generated using Genesis Workbench. Genesis
Workbench is a GUI based tool for defining OSD menus, navigation, and functionality.
FLI8532 I2C Master Serial Protocol :
The two-wire protocol consists of a serial clock MSTR_SCL and bi-directional serial data line
MSTR_SDA. The FLI8532 acts as bus master and drives MSTR_SCL and either the master
or slave can drive the MSTR_SDA line (open drain) depending on whether a read or write
operation is being performed.
There are three isolated Master Serial busses, all driven by a common Master Serial
Controller. These busses can be independently taken “off-line” or pulled up to different
voltages without affecting the other busses.
Содержание Gallevia GV46LHDTV10A
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