9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
USB Core Interrupts ............................................................................... 9-1
Wakeup Interrupt .................................................................................... 9-2
USB Signaling Interrupts ........................................................................ 9-4
SUTOK, SUDAV Interrupts ................................................................... 9-8
SOF Interrupt .......................................................................................... 9-9
Suspend Interrupt .................................................................................... 9-9
USB RESET Interrupt ............................................................................ 9-9
Bulk Endpoint Interrupts ........................................................................ 9-9
9.10 USB Autovectors .................................................................................. 9-10
9.11 Autovector Coding ................................................................................ 9-11
9.12 I2C Interrupt .......................................................................................... 9-13
9.13 In Bulk NAK Interrupt - (AN2122/AN2126 only) ............................... 9-13
9.14 I2C STOP Complete Interrupt - (AN2122/AN2126 only) .................... 9-15
10
EZ-USB Resets ..............................................................................10-1
10.1 Introduction ........................................................................................... 10-1
10.2 EZ-USB Power-On Reset (POR) .......................................................... 10-1
10.3 Releasing the 8051 Reset ...................................................................... 10-3
10.3.1 RAM Download ...................................................................... 10-4
10.3.2 EEPROM Load ...................................................................... 10-4
10.3.3 External ROM ........................................................................ 10-4
10.4 8051 Reset Effects ................................................................................ 10-4
10.5 USB Bus Reset ...................................................................................... 10-5
10.6 EZ-USB Disconnect ............................................................................. 10-7
10.7 Reset Summary ..................................................................................... 10-8
11
12
EZ-USB Power Management ......................................................11-1
11.1 Introduction ........................................................................................... 11-1
11.2 Suspend ................................................................................................. 11-2
11.3 Resume .................................................................................................. 11-3
11.4 Remote Wakeup .................................................................................... 11-4
EZ-USB Registers .........................................................................12-1
12.1 Introduction ........................................................................................... 12-1
12.2 Bulk Data Buffers ................................................................................. 12-3
12.3 Isochronous Data FIFOs ....................................................................... 12-4
12.4 Isochronous Byte Counts ...................................................................... 12-6
12.5 CPU Registers ....................................................................................... 12-8
12.6 Port Configuration ................................................................................ 12-9
12.7 Input-Output Port Registers ................................................................ 12-11
EZ-USB TRM v1.9
Table of Contents
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