W90N745CD Datasheet, PDF (3/422 Pages) Winbond – 16/32-bit ARM microcontroller

W90N745CD/W90N745CDG
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 1
2. FEATURES ................................................................................................................................. 2
3. PIN DIAGRAM ............................................................................................................................ 7
4. PIN ASSIGNMENT ..................................................................................................................... 8
5. PIN DESCRIPTION................................................................................................................... 13
6. FUNCTIONAL DESCRIPTION ................................................................................................. 24
6.1 ARM7TDMI CPU CORE ............................................................................................... 24
6.2 System Manager........................................................................................................... 25
6.2.1 Overview ........................................................................................................................25
6.2.2 System Memory Map......................................................................................................25
6.2.3 Address Bus Generation ................................................................................................28
6.2.4 Data Bus Connection with External Memory ..................................................................28
6.2.5 Bus Arbitration................................................................................................................37
6.2.6 Power Management .......................................................................................................38
6.2.7 Power-On Setting ...........................................................................................................41
6.2.8 System Manager Control Registers Map ........................................................................41
6.3 External Bus Interface .................................................................................................. 56
6.3.1 EBI Overview..................................................................................................................56
6.3.2 SDRAM Controller ..........................................................................................................56
6.3.3 EBI Control Registers Map .............................................................................................60
6.4 Cache Controller........................................................................................................... 79
6.4.1 On-Chip RAM .................................................................................................................79
6.4.2 Non-Cacheable Area ......................................................................................................79
6.4.3 Instruction Cache............................................................................................................80
6.4.4 Data Cache ....................................................................................................................82
6.4.5 Write Buffer ....................................................................................................................84
6.4.6 Cache Control Registers Map.........................................................................................84
6.5 Ethernet MAC Controller............................................................................................... 92
6.5.1 EMC Functional Description ...........................................................................................93
6.5.2 EMC Register Mapping ................................................................................................103
6.6 GDMA Controller ........................................................................................................ 158
6.6.1 GDMA Functional Description ......................................................................................158
6.6.2 GDMA Register Map ....................................................................................................159
6.7 USB Host Controller ................................................................................................... 168
6.7.1 USB Host Functional Description .................................................................................168
6.7.2 USB Host Controller Registers Map .............................................................................169
6.8 USB Device Controller................................................................................................ 192
6.8.1 USB Endpoints .............................................................................................................192
- II -