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参数资料
| 型号： | SMS8198SB |
| 厂商： | Summit Microelectronics, Inc. |
| 英文描述： | Philips TriMedia⑩ Processor Companion Supervisor With a 16K-bit 2-wire Serial Memory |
| 中文描述： | ⑩飞利浦代TriMedia处理器伴侣监凭借16K的位2线串行存储器 |
| 文件页数： | 2/14页 |
| 文件大小： | 84K |
| 代理商： | SMS8198SB |
2
SMS8198
2036 5.0 4/18/00
SMS8198
Tri Media
Processor
SDA
System Boot
Block
SCL
TRI_RESET#
VCR/Monitor
Audio
Local Reset
Audio
Camera
TRI_RESET#
PCI_RESET#
PCI Bus
WP
1
4
4
4
Peripheral
Peripheral
2036 ILL16.0
Figure 1. Typical Implementation of the SMS8198 and TriMedia Processor
The boot hardware operation begins with the assertion of
the reset signal TRI_RESET#. The TRI_RESET# output
from the SMS8198 is guaranteed to be valid at V
CC
-1.0V.
The reset output is asserted whenever V
CC
is less than the
V
TRIP
threshold and will remain asserted after V
CC
is
>V
TRIP
for the duration of t
PURST
. Whenever the
TRI_RESET# is active the memory will be write protected.
In addition to the reset write protection feature, pin 7 can
be tied to a pull-up to disable the write function of the
memory. This effectively turns the memory array into an
inexpensive boot ROM.
After reset is de-asserted, only the system boot block is
allowed to operate. At this point the TriMedia processor
takes over and begins to download data from the memory
array into its system boot block. The data downloaded
contains configuration data to set up the TriMedia proces-
sor and to load special ID information into the PCI configu-
ration space register. The ID information is published in
the PCI configuration register to provide the 16 bit Sub-
system ID and Subsystem Vendor ID.
It should be noted that both the threshold and the t
PURST
pulse width are programmable. Not only does this provide
maximum flexibility to the designer, but, as the processor
operating voltage levels migrate downwards, the
SMS8198 can be programmed to following this downward
trend. The values can be selected from the ordering
information table and the devices specified as standard
off-the-shelf items.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SMS840 | 制造商:SECOS 制造商全称:SeCoS Halbleitertechnologie GmbH 功能描述:0.13A , 50V , RDS(ON) 10 P-Channel Enhancement MOSFET |
| SMS9CH-2Z17 | 制造商:SOURIAU 功能描述:Conn Qikmate HDR 9 POS 5.08mm Solder ST Thru-Hole |
| SMS9CSB1 | 功能描述:集管和线壳 Protection Shroud 9P Pnl Mnt Pin Recpt RoHS:否 产品种类:1.0MM Rectangular Connectors 产品类型:Headers - Pin Strip 系列:DF50 触点类型:Pin (Male) 节距:1 mm 位置/触点数量:16 排数:1 安装风格:SMD/SMT 安装角:Right 端接类型:Solder 外壳材料:Liquid Crystal Polymer (LCP) 触点材料:Brass 触点电镀:Gold 制造商:Hirose Connector |
| SMS9GE3 | 制造商:SOURIAU 功能描述:SOCKET PCB 9WAY 制造商:Souriau 功能描述:Conn Qikmate F 9 POS 5.08mm Solder ST Thru-Hole |
| SMS9-GE3 | 功能描述:集管和线壳 9P Socket Straight Boardmount RoHS:否 产品种类:1.0MM Rectangular Connectors 产品类型:Headers - Pin Strip 系列:DF50 触点类型:Pin (Male) 节距:1 mm 位置/触点数量:16 排数:1 安装风格:SMD/SMT 安装角:Right 端接类型:Solder 外壳材料:Liquid Crystal Polymer (LCP) 触点材料:Brass 触点电镀:Gold 制造商:Hirose Connector |
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