W90N740CD WINBOND [Winbond], W90N740CD Datasheet - Page 2

• Manufacturer Part Number: W90N740CD
• Description: 32-Bit ARM7TDMI-Based Micro-Controller
• Manufacturer: WINBOND [Winbond]

Table of contents-
1.
2.
3.
4.
5.
6.
GENERAL DESCRIPTION ......................................................................................................... 1
FEATURES ................................................................................................................................. 1
PIN CONFIGURATION ............................................................................................................... 5
PIN ASSIGNMENT ..................................................................................................................... 6
PIN DESCRIPTION..................................................................................................................... 9
FUNCTIONAL DESCRIPTION ................................................................................................. 13
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
ARM7TDMI CPU Core.................................................................................................. 13
System Manager........................................................................................................... 14
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
External Bus Interface (EBI) ......................................................................................... 34
6.3.1
6.3.2
6.3.3
6.3.4
Cache Controller........................................................................................................... 55
6.4.1
6.4.2
6.4.3
6.4.4
6.4.5
Ethernet MAC Controller (EMC) ................................................................................... 63
6.5.1
7.5.2 EMC Register Mapping ......................................................................................................69
Network Address Translation Accelerator (NATA) ..................................................... 100
6.6.1
6.6.2
GDMA Controller ........................................................................................................ 112
6.7.1
6.7.2
USB Host Controller ................................................................................................... 120
6.8.1
Overview ........................................................................................................................14
System Memory Map......................................................................................................14
Address Bus Generation ................................................................................................16
Data Bus Connection with External Memory ..................................................................17
Bus Arbitration................................................................................................................27
Power-On Setting ...........................................................................................................28
System Manager Control Registers Map ........................................................................29
EBI Overview..................................................................................................................34
SDRAM Controller ..........................................................................................................35
External Bus Mastership.................................................................................................40
EBI Control Registers Map .............................................................................................40
On-Chip RAM .................................................................................................................55
Non-Cacheable Area ......................................................................................................55
Instruction Cache............................................................................................................55
Data Cache ....................................................................................................................58
Write Buffer ....................................................................................................................60
EMC Descriptors ............................................................................................................63
NAT Process Flow........................................................................................................101
NATA Registers Map....................................................................................................102
GDMA Function Description .........................................................................................112
GDMA Registers Map...................................................................................................113
USB Host Controller Registers Map .............................................................................121
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W90N740CD/W90N740CDG