Cypress Semiconductor SL811HS Instrukcja Użytkownika Pobierz pdf (Strona 17)

Cypress Semiconductor Corporation

SL811HS and SL811HST: Application Notes

and specifications contained in this document are subject to change without

notice.

Date: 07/26/01

Revision: 1.21

Page: 17

3.3.1 Control Registers

In Host mode, SL811HS has two sets of USB Endpoint Control Registers, which allow for

overlapped operation. The registers allow new transactions to be set up while a current

transaction is underway. The following Tables show various Register addresses and values

used in the DVK software routines

Table 2: USB Control Register Memory

USBControl0 Description

EP0Control 0x00 Control Register0

EP0Address 0x01 Address Register0

EP0XferLen 0x02 Transfer length Register0

EP0Status 0x03 Status Register0

EP0Counter 0x04 Counter Register0

USBControl1 Description

EP0Control 0x08 Control Register1

EP0Address 0x09 Address Register1

EP0XferLen 0x0a Transfer length Register1

EP0Status 0x0b Status Register1

EP0Counter 0x0c Counter Register1

Table 3: SL811HS Control Register Memory Map

CtrlReg 0x05

Control Register

IntEna 0x06 Interrupt Enable

IntStatus 0x0d Interrupt Status

DATASet 0x0e DATA Set

CSOFcnt 0x0f SOF Counter High and Control Register

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 42 43

Brak uwag

Cypress Semiconductor SL811HS Instrukcja Użytkownika Strona 17