GL602USB Ver la hoja de datos (PDF) - Genesys Logic

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Fabricante

GL602USB

USB KEYBOARD MICROCONTROLLER

Genesys Logic 

R/O

R/O

R/O

R/O

R/O

R/O

R/O

R/O

SENSE8 SENSE7 SENSE6 SENSE5 SENSE4 SENSE3 SENSE2 SENSE1

Key matrix sense input port

All SENSE1~SENSE8 bits indicate state of the corresponding SENSE1~SENSE8 pins.

Value on POR: “X X X X X X X X”

FFRST (Address 1Ah, FIFO reset register)

W/O

W/O

FFRST123 FFRST0

FFRST123: Reset endpoint 1/2/3 FIFO read/write pointer

Write “1” to this bit will reset endpoint 1/2/3 FIFO read/write pointer. Data in endpoint 1/2/3 FIFO remain

unchanged. Before data are written into endpoint 1/2/3 FIFO, EPSEL should be set correctly then FFRST123

should be set.

FFRST0: Reset endpoint 0 FIFO read/write pointer

Write “1” to this bit will reset endpoint 0 FIFO read/write pointer. Data in endpoint 0 FIFO remain

unchanged. Before data are read/written into endpoint 0 FIFO, FFRST0 should be set first.

MODESEL (Address 1Bh, Mode select register)

OSCSTP: Suspend clock stop control bit

1: Clock is stopped while suspend

0: Clock is not stopped while suspend

PWRON: Power reset indicator

1: Power on reset detected

0: USB bus reset detected

Value on POR: “- - - - - - 0 1”

R/W

R/W

OSCSTP PWRON

USBIOCTL (Address 1Ch, I/O control register for USB D+/D-)

R/W

R/W

R/W

R/W

DMOE

DPOE

DM

DP

DMOE: D- pin output enable control bit

1: D- pin digital output enable

0: D- pin digital output disable

DPOE: D+ pin output enable control bit

1: D+ pin digital output enable

0: D+ pin digital output disable

DM: Digital output value of D- pin. This pin is open drain output. Output high will be tri-stated.

DP: Digital output value of D+ pin. This pin is open drain output. Output high will be tri-stated.

Value on POR: “- - - - 1 1 0 0”

EPSEL (Address 1Dh, Endpoint select register)

EPSEL[3: 1]: Endpoint select control bits

Bit Value Endpoint to be selected

001

Endpoint 1

010

Endpoint 2

100

Endpoint 3

Value on POR: “- - - - - X X X”

R/W

EPSEL3

R/W

EPSEL2

R/W

EPSEL1

SERCTL (Address 1Eh, PS/2 or RS232 mouse port control register)

RXFLG: Data received flag on PS/2 interface

1: Data received and saved in SERBUF

R/WC

RXFLG

R/W

SRXEN

Revision 1.6

-14-

02/28/2000

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