Rev.1.0
EPSON
i
CONTENTS
1.
DESCRIPTION..................................................................................................................................1
2.
FEATURES .......................................................................................................................................1
3.
BLOCK DIAGRAM ...........................................................................................................................2
4.
PIN ASSIGNMENT ...........................................................................................................................3
5.
PIN DESCRIPTION...........................................................................................................................4
6.
FUNCTIONAL DESCRIPTION .........................................................................................................6
6.1
CPU Interface Circuit..................................................................................................................6
6.2
Internal Registers........................................................................................................................6
6.3
Port Interface Circuit...................................................................................................................6
6.4
DMA Control Circuit....................................................................................................................6
6.5
SCSI-2 (3) Interface Circuit ........................................................................................................6
6.6
USB Interface Circuit ..................................................................................................................7
6.7
PLL Circuit (Internal System Clock Generating Section) ...........................................................7
7.
FUNCTION OF REGISTERS............................................................................................................9
7.1
List of Registers ..........................................................................................................................9
7.1.1
List of Register/Window Settings (USB) ...................................................................... 11
7.2
List of Registers/Bits.................................................................................................................13
7.2.1
List of Registers/Bits/List of Window Configuration (USB) List of Bits ........................15
7.3
Detailed Description of Each Register......................................................................................17
7.3.1
Main Interrupt Status (MainIntStat)
R/W ...................................................................17
7.3.2
EPr Interrupt Status(EPrIntStat)
R/W ........................................................................18
7.3.3
Interrupt Status Window 0(IntStatWindow_0)
R/W ...................................................18
7.3.4
Interrupt Status Window 1(IntStatWindow_1)
R/W ...................................................19
7.3.5
Main Interrupt Enable(MainIntEnb)
R/W ...................................................................19
7.3.6
EPr Interrupt Enable(EPrIntEnb)
R/W .......................................................................19
7.3.7
Interrupt Enable Window 0(IntEnbWindow_0)
R/W ..................................................20
7.3.8
Interrupt Enable Window 1(IntEnbWindow_1)
R/W ..................................................20
7.3.9
Interrupt Index(IntIndex)
R/W ....................................................................................20
7.3.10 System Control(SystemCtrl)
R/W...............................................................................21
7.3.11 USB Common(USBCommon)
R/W ............................................................................21
7.3.12 Reset(Reset)
R/W ......................................................................................................22
7.3.13 Port DMA Control(PortDMACtrl)
R/W ........................................................................22
7.3.14 Port DMA Size High(PortDMASize_H)
R/W ..............................................................23
7.3.15 Port DMA Size Middle(PortDMASize_M)
R/W...........................................................23
7.3.16 Port DMA Size Low(PortDMASize_L)
R/W................................................................23
7.3.17 Port Config 0 (PortConfig_0)
R/W..............................................................................24
7.3.18 Port Config 1(PortConfig_1)
R/W...............................................................................25
7.3.19 USB Index(USBIndex)
R/W .......................................................................................26
7.3.20 USB Window 0(USBWindow_0)
R/W ........................................................................26
7.3.21 USB Window 1(USBWindow_1)
R/W ........................................................................26
7.3.22 USB Window 2(USBWindow_2)
R/W ........................................................................27
7.3.23 USB Window 3(USBWindow_3)
R/W ........................................................................27
7.3.24 USB Window 4(USBWindow_4)
R/W ........................................................................27
7.3.25 USB Window 5(USBWindow_5)
R/W ........................................................................28