GL651USB Просмотр технического описания (PDF) - Genesys Logic

Номер в каталоге

Компоненты Описание

производитель

GL651USB

2-PORT USB KEYBOARD HUB CONTROLLER

Genesys Logic 

GL651USB USB KEYBOARD HUB CONTROLLER

TRANSCIVER: TRANSCIVER is the analog circuits, which takes care of the electrical

characteristics of USB.

SIE:

SIE is the serial interface engine. The main responsibility of SIE is to

code/decode USB protocol. SIE guarantee the GL651USB always

function in a correct state.

KMIF:

KMIF is the interface of key matrix and GL651USB. KMIF drives the

key matrix and sense the input. The sensed data is then output to the

registers, which provide the uC to judge the pressed key.

REGISTERS: REGISTERS is the interface of hardware and software. The used

registers will be listed in the later section.

REPEATER:

REPEATER is the kernel of hub. It repeats the data accurately from the

upstream port to the downstream port, and vice versa.

PORT CONTROLLER: Each downstream port of hub needs a PORT CONTROLLER

respectively. It monitors the state of the port.

PLL:

PLL extracts 48 Mhz clock from input 12 Mhz clock. This 48 Mhz

clock is used to generate USB clock in the digital PLL circuit.

5 REGISTER SUMMARY

MNEMONIC

DEVCTL

EVTFLG_1

EVTFLG_2

RXCTL0_HB

RXCTL0_KB

TXCTL0_HB

TXCTL0_KB

TXCTL123

FFDAT0_HB

FFDAT0_KB

FFDAT123

BUFCTL

DRVSEL

SENSE

ENDP_PORT_SEL

HUB_STAT_CHG

PORT_STATUS

BUS_PORT_DATA

HOST_CMD

ENP2_IND

OFFSET

00h

01h

02h

03h

04h

05h

06h

07h

08h

09h

0Ah

0Bh

0Ch

0Dh

0Eh

0Fh

10h

11h

12h

13h

DESCRIPTION

Device control register

USB function interrupt flag

USB function interrupt flag

Endpoint 0 RX control of hub

Endpoint 0 RX control of keyboard

Endpoint 0 TX control of hub

Endpoint 0 TX control of keyboard

Endpoint 1,2, and 3 TX control

Data buffer (FIFO) for endpoint 0 of hub

Data buffer (FIFO) for endpoint 0 of keyboard

Data buffer (FIFO) for endpoint 1, 2, and 3

Data buffer control register

DRV1 ~ DRV18 select

SENSE1 ~ SENSE8 input

Endpoint selected and hub port to be configured

Hub status and status change indicator

Hub ports status indicator

Hub ports status change indicator

Host command to HUB

Hub interrupt indicator

7

03/06/00

Version 1.0

Share Link: