Functions; 1.1 Usb Ports - Epson S2R72V18 Technical Manual

1. Functions

This section describes various LSI functions.
Register rules are described below.
• Register separation by port
This LSI has register sets with identical functions for each of the two USB ports.
(Port 1 lacks device function registers.)
Where a distinction needs to be made, this is indicated in the form "Register name + (Port number)."
E.g.: "MainIntStat(0) register"
• Registers for a single address are indicated as follows: "Register name + Register."
E.g.: "MainIntStat register"
• Individual bits are indicated as follows: "Register name.Bit name + Bit" or "Bit name + Bit."
E.g.: "MainIntStat.CPU_IntStat bit"
• Registers for each device endpoint are indicated as follows: "D_EPx{x=...} Register."
E.g.: "D_EPx{x=0,a-e}IntStat register"
• Registers for each host channel are indicated as follows: H_CHx{x=...} Register.
(e.g., "H_CHx{x=0,a-e}IntStat register")

1.1 USB Ports

This LSI has two USB ports, designated USB Port 0 and USB Port 1. USB Port 0 can be used for either
USB host or USB device functions. USB Port 1 can be used for USB host functions only. Each port has
individual USB functions and control interfaces. Chip-specific functions not assigned to either port are
controlled by shared registers mirrored at each port control interface.
S2R72V18 Technical Manual (Rev.1.00)
S2R72V18
USB Port 0
Individual registers
Shared registers
DMA
FIFO
PowerManagement
Host/Device
Fig. 1-1 Block image
USB Port 1
Individual registers
Shared registers
DMA
FIFO
PowerManagement
Host
EPSON
1. Functions
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