W90210F Winbond Electronics Corp America, W90210F Datasheet - Page 5

• Manufacturer Part Number: W90210F
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

1. General Description
is a high-performance, highly integrated 32-bit processor intended for a wide range of embedded applications, such as
set-top box, web browser, X-terminal, and visual/data communication devices..
W90K. The PA-RISC architecture incorporates traditional RISC elements, such as instruction pipelining, a register-to-
register instruction set and a large, general-purpose register file. Separate on-chip instruction and data caches allow the
W90210F to fetch an instruction and access data in a single processor cycle.
and ease the overall system design task. In addition to its cache memories, the W90210F s on-chip support features
include a DRAM controller, ROM/FLASH ROM interface, PCI bridge, DMA controller, two serial ports with FIFO, IEEE
1284 parallel port, timer/counters, and enhanced debug support- all features that are commonly required in embedded
applications.
The W90210F Embedded Controller is part of Winbond s W90K Embedded processor family. The processor
The W90210F CPU core is based on the HP PA-RISC architecture and is upward code compatible with the
The W90210F includes several features that greatly increase performance, reduce system component count
Figure 1.1 shows the system diagram of W90210F.
PCI Bridge
internal bus
The above information is the exclusive intellectual property of Winbond Electronics Corp. and shall not be disclosed, distributed or reproduced without permission from Winbond.
FLA S H R O M
Interface
Interface
DRA M
ROM /
Figure 1.1 W90210F System Diagram
latch
5
DRA M a r r a y
W 9 0 K C P U c o re
8 / 1 6 / 3 2 - b i t
Bus Interface Unit
ROM
M e m o r y
Data
Bus
8 - b i t D M A
2-Channel
Controller
I/O Bus
CPU RST, CPU CLOCK
D M A
Address/Control Bus
32-bit Data Bus
Peripheral
Serial
Timer
Ports
Bridge
ECP
W90210F
Version 1.4, 10/8/97