EZ-USB TRM v1.9
Table of Contents
v
9.2
USB Core Interrupts ............................................................................... 9-1
9.3
Wakeup Interrupt .................................................................................... 9-2
9.4
USB Signaling Interrupts ........................................................................ 9-4
9.5
SUTOK, SUDAV Interrupts ................................................................... 9-8
9.6
SOF Interrupt .......................................................................................... 9-9
9.7
Suspend Interrupt .................................................................................... 9-9
9.8
USB RESET Interrupt ............................................................................ 9-9
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
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
12
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
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