CS22210 Datasheet, PDF (4/31 Pages) Cirrus Logic – WIRELESS PCI/USB CONTROLLER

3 Functional Description
Figure 2. Block Diagram of Major Functional Units
USB or PCI
Host Interface
12MHz
or
33 MHz
PCI
Interface
USB
Interface
DMA
CTRL
Comm
Buffer
DMA
Memory/Boot ROM
Controller
Arbiter
Read/Write Buffer
ARM 7TDMI
Interrupt
controller
Timer
(2)
4KB
Cache
DMA
JTAG/Test Interface
Dual Radio
MAC
W/ DMA Ctrl
Radio
Interface
44MHz
77MHz System Control Bus
Sleep
Timer
FEC
CODEC
Misc.
Config.
Clock/PLL
48MHz / 44 MHz
Crystal
or
Oscillator
CS22210 PCI/USB Wireless Controller
4 of 31
www.cirrus.com
D556PP2 Rev. 3.0