GENESYS GL600USB-A, GL600USB, GL600USB-B Datasheet

Genesys Logic, Inc.

GL600USB

Genesys Logic, Inc.

GL600USB-A
GL600USB-B

USB MOUSE MICROCONTROLLER

SPECIFICATION 1.3
Jun 19, 2000

10F, No.11, Ln.3, Tsao Ti Wei, Shenkeng, Taipei, Taiwan
Tel: [phone] Fax: [phone]

http://www.genesyslogic.com

GL600USB/GL600USB-A/GL600USB-B

TABLE OF CONTENTS

TABLE OF CONTENTS.............................................................................................................................................1

TABLE OF CONTENTS.............................................................................................................................................2

TABLE OF FIGURES .................................................................................................................................................3

1 FEATURES ............................................................................................................................................................4

2 FUNCTIONAL OVERVIEW ...........................................................................................................................5

3 PIN DEFINITIO NS AND DESCRIPTIONS ................................................................................................6

3.1 GL600USB ......................................................................................................................................................6

3.2 GL600USB-A ..................................................................................................................................................8

3.3 GL600USB-B ..................................................................................................................................................9

4 FUNCTIONAL DESCRIPTION....................................................................................................................10

4.1 MEMORY ORGANIZATION......................................................................................................................10

4.1.1 Program Memory Organization ...................................................................................................10

4.1.2 Data Memory Organization ........................................................................................................... 10

4.2 USB FUNCTION REGISTERS..................................................................................................................11

4.3 MCU FUNCTION REGISTERS ................................................................................................................14

4.4 FULL-RANGE DETECTION AND ANALOG -TO-DIGITAL CONVERTER.....................................18

4.5 GENERAL PURPOSE I/O PORTS ...........................................................................................................19

4.6 TIMER INTERRUPT ...................................................................................................................................19

4.7 USB ENGINE................................................................................................................................................19

4.7.1 Voltage Regulator .............................................................................................................................19

4.7.2 USB Transceiver................................................................................................................................20

4.7.3 Serial Interface Engine (SIE).........................................................................................................22

4.8 INSTRUCTION SET SUMMARY..............................................................................................................22

4.8.1 Operand Field Descriptions ...........................................................................................................22

4.8.2 Instruction Set....................................................................................................................................22

5 ABSOLUTE MAXIMUM RATINGS ...........................................................................................................31

6 ELECTRICAL CHARACTERISTICS........................................................................................................31

7 PACKAGE DIAGRAMS ..................................................................................................................................33

7.1 16-pin P-DIP..............................................................................................Error! Bookmark not defined.

7.2 18-pin P-DIP..............................................................................................Error! Bookmark not defined.

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7.3 20-pin P-DIP..............................................................................................Error! Bookmark not defined.

7.4 16-pin SOP.................................................................................................Error! Bookmark not defined.

7.5 18-pin SOP....................................................................................................................................................37

7.6 20-pin SOP....................................................................................................................................................38

TABLE OF FIGURES

Figure 2-1 Block Diagram of GL600USB .......................................................................... 5

Figure 3-1 20-pin DIP (GL600USB) .................................................................................. 7

Figure 3-2 18-pin DIP (GL600USB-A).............................................................................. 8

Figure 3-3 16-pin DIP (GL600USB-B) .............................................................................. 9

Figure 4-1 Program Memory Space .................................................................................. 10

Figure 4-2 Data Memory Space........................................................................................ 11

Figure 4-3 Differential Input Sensitivity over Entire Common Mode Range .................. 20

Figure 4-4 Receiver Jitter Tolerance ................................................................................. 21

Figure 4-5 Data Signal Rise and Fall Time ...................................................................... 22

Figure 7-1 Package outline dimension for 16-pin P-DIP.....Error! Bookmark not defined.

Figure 7-2 Package outline dimension for 18-pin P-DIP.....Error! Bookmark not defined.

Figure 7-3 Package outline dimension for 20-pin P-DIP.....Error! Bookmark not defined.

Figure 7-4 Package outline dimension for 16-pin SOP .................................................... 36

Figure 7-5 Package outline dimension for 18-pin SOP .................................................... 37

Figure 7-6 Package outline dimension for 20-pin SOP .................................................... 38

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GL600USB/GL600USB-A/GL600USB-B

1 FEATURES

• Low-cost solution for low-speed USB mouse

• 8-bit micro-controller

− Operation Speed: DC to 6MHz clock input

− Performance: 3 MIPS @ 6MHz

− Single cycle instruction execution

− RISC-like architecture

− USB optimized instruction set

• USB Specification Compliance

− Conforms to USB 1.5Mbps Specification, Version 1.1

− Conforms to USB HID Class Specification, Version 1.1

− Supports 1 device address and 2 endpoints (include endpoint 0)

• I/O ports

− Up to 13(GL600USB)/11(GL600USB-A)/9(GL600USB-B) general purpose I/O pins (OTP type is

less a GPIO pin than mask type)

− Internal RC clock to wakeup periodically (about 500ms) when suspend

− Up to 8(GL600USB)/6(GL600USB-A)/4(GL600USB-B) special purpose I/O pins optimized for

photo-sensor (Internal build in 4 bits ADC)

− Up to 2 I/O pins with large current drive capability to drive LED (Sink current up to 16 mA)

• Internal memory

− 64 bytes of RAM (special purpose register is not included)

− 1.75K x 14 of program ROM

• Integrated USB transceiver

• Patented full-range detection for photo-sensor

− Removes the expensive process of matching LED and photo-sensor

• On-chip 3.3v output

− No external regulator required

• Improved output drivers with slew -rate control to reduce EMI

• 6 MHz external clock

• Internal power -on reset(POR)

• Internal power -fail detector

• Supports suspend/normal mode power management

− Suspend current lower than 400µA for whole mouse system (mask type)

• 8-bits free-running timer

• Available in cost saving 20-pin(GL600USB) PDIP, 18-pin(GL600USB-A) PDIP and 16-

pin(GL600USB-B) PDIP

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2 FUNCTIONAL OVERVIEW

The GL600USB is a 8-bits RISC-like high performance microcontroller with a built-in 1.5Mbps SIE and
transceiver. The microcontroller features 33 instructions optimized for USB applications. There are 64
bytes on-chip RAM and 1.75K x 14 program ROM incorporated into the microcontroller. The GL600USB
accepts a 6MHz ceramic resonator or a crystal as its clock source. The microcontroller features 12 general
purpose I/Os (GPIOs). 8 GPIO pins build in 4 bits ADC for photo-sensor input to remove the expensive
process of matching LED and photo-sensor. Additionally, 2 GPIO pins are strong enough to drive LEDs.
All GPIO ports feature low EMI emissions as a result of improved output drivers with slew -rate control.

USB Registers

&

FIFO Control

Micro-

controller

Endpoint 0

8 Bytes FIFO

D+

USB

Interface

D-

Endpoint 1

8 Bytes FIFO

Figure 2-1 Block Diagram of GL600USB

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3 PIN DEFINITIONS AND DESCRIPTIONS

3.1 GL600USB

Pin No. Name I/O Description

1 P1.2/LB

2 P1.3/MB I/O Port 1 bit 3/mouse middle button

3 P1.4/RB I/O Port 1 bit 4/mouse right button

4 P2.7/W2 I/O Port 2 bit 7/photo-sensor input for horizontal scroll 2

5 VCC - Voltage supply
6 XTAL2 O Ceramic resonator or crystal out
7 XTAL1 I Ceramic resonator or crystal in
8 P2.4/Z1 I/O Port 2 bit 4/photo-sensor input for vertical scroll 1

9 D+ I/O USB data+
10 D- I/O USB data­11 V3.3 O 3.3V output, a 0.1uF to 1uF capacitor should be added

12 P2.5/Z2 I/O Port 2 bit 5/photo-sensor input for vertical scroll 2

13 P2.6/W1 I/O Port 2 bit 6/photo-sensor input for horizontal scroll 1

14 P1.0 I/O Port 1 bit 0 with LED drive capability
15 P1.1 I/O Port 1 bit 1 with LED drive capability
16 GND - Ground
17 P2.3/Y1 I/O Port 2 bit 3/photo-sensor input for Y axis 1

18 P2.2/Y2 I/O Port 2 bit 2/photo-sensor input for Y axis 2

19 P2.1/X1 I/O Port 2 bit 1/photo-sensor input for X axis 1

20 P2.0/X2 I/O Port 2 bit 0/photo-sensor input for X axis 2

Note 1: Name or description after “/” means default function specified by Genesys Logic firmware

[1]

I/O Port 1 bit 2/mouse left button

Internal pull up 10K

Internal pull up 10K

Internal pull up 10K

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

on external circuit for this pin

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pul l down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Table 3-1 GL600USB Pin Definitions and Descriptions

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GL600USB/GL600USB-A/GL600USB-B

P1.2
P1.3
P1.4
P2.7

V

CC

XTAL2
XTAL1

P2.4

D+

D-

1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11

P2.0
P2.1
P2.2
P2.3

GND
P1.1
P1.0
P2.6
P2.5
V3.3

Figure 3-1 20-pin DIP & SOP (GL600USB)

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V3.3

9 10

3.2 GL600USB-A

Pin No. Name I/O Description

1 P1.2/LB

2 P1.3/MB I/O Port 1 bit 3/mouse middle button

3 P1.4/RB I/O Port 1 bit 4/mouse right button

4 VCC - Voltage supply

5 XTAL2 O Ceramic resonator or crystal out

6 XTAL1 I Ceramic resonator or crystal in

7 P2.4/Z1 I/O Port 2 bit 4/photo-sensor input for vertical scroll 1

8 D+ I/O USB data+

9 D- I/O USB data­10 V3.3 O 3.3V output, a 0.1uF to 1uF capacitor should be added

11 P2.5/Z2 I/O Port 2 bit 5/photo-sensor input for vertical scroll 2

12 P1.0 I/O Port 1 bit 0 with LED drive capability
13 P1.1 I/O Port 1 bit 1 with LED drive capability
14 GND - Ground
15 P2.3/Y1 I/O Port 2 bit 3/photo-sensor input for Y axis 1

16 P2.2/Y2 I/O Port 2 bit 2/photo-sensor input for Y axis 2

17 P2.1/X1 I/O Port 2 bit 1/photo-sensor input for X axis 1

18 P2.0/X2 I/O Port 2 bit 0/photo-sensor input for X axis 2

[1]

I/O Port 1 bit 2/mouse left button

Table 3-2 GL600U SB-A Pin Definitions and Descriptions

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Internal pull up 10K

Internal pull up 10K

Internal pull up 10K

Optional internal pull down from 4K ~ 32K or
no pull down resistor

on external circuit for this pin

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

P1.2
P1.3
P1.4

V

CC

XTAL2
XTAL1

P2.4

D+

D-

Figure 3-2 18-pin DIP & SOP (GL600USB-A)

1 18
2 17
3 16
4 15
5 14
6 13
7 12
8 11

P2.0
P2.1
P2.2
P2.3

GND
P1.1
P1.0
P2.5

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GL600USB/GL600USB-A/GL600USB-B

8 9

D-

3.3 GL600USB-B

Pin No. Name I/O Description

1 P1.2/LB

2 P1.3/MB I/O Port 1 bit 3/mouse middle button

3 P1.4/RB I/O Port 1 bit 4/mouse right button

4 VCC - Voltage supply

5 XTAL2 O Ceramic resonator or crystal out

6 XTAL1 I Ceramic resonator or crystal in

7 D+ I/O USB data+

8 D- I/O USB data-

9 V3.3 O 3.3V output, a 0.1uF to 1uF capacitor should be added

10 P1.0 I/O Port 1 bit 0 with LED drive capability
11 P1.1 I/O Port 1 bit 1 with LED drive capability
12 GND - Ground
13 P2.3/Y1 I/O Port 2 bit 1/photo-sensor input for X axis 1

14 P2.2/Y2 I/O Port 2 bit 1/photo-sensor input for X axis 2

15 P2.1/X1 I/O Port 2 bit 2/photo-sensor input for Y axis 1

16 P2.0/X2 I/O Port 2 bit 3/photo-sensor input for Y axis 1

Table 3-3 GL600USB-B Pin Definitions and Descriptions

[1]

I/O Port 1 bit 2/mouse left button

Internal pull up 10K

Internal pull up 10K

Internal pull up 10K

on external circuit for this pin

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

Optional internal pull down from 4K ~ 32K or
no pull down resistor

P1.2
P1.3
P1.4

V

CC

XTAL2
XTAL1

D+

Figure 3-3 16-pin DIP & SOP (GL600USB-B)

1 16
2 15
3 14
4 13
5 12
6 11
7 10

P2.0
P2.1
P2.2
P2.3

GND
P1.1
P1.0
V3.3

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GL600USB/GL600USB-A/GL600USB-B

4 FUNCTIONAL DESCRIPTION

The Genesys Logic GL600USB microcontroller is optimized for USB 2D/3D/4D mouse. This USB
microcontroller conforms to the low -speed (1.5Mbps) requirements of the USB Specification version 1.1.
The microcontroller is a self-contained unit with an USB SIE, an USB transceiver, an 8-bits RISC-like
microcontroller, a timer, data and program memories. It supports one USB device address and two
endpoints (include endpoint 0).

4.1 MEMORY ORGANIZATION

The memory in the microcontroller is organized into user program memory in program ROM and data
memory in SRAM space.

4.1.1 Program Memory Organization

The 11-bit Program Counter (PC) is capable of addressing 2K x 14 of program space. However , the
program space of the GL600USB is 1.75K x 14. The program memory space is divided into two functional
groups: Interrupt Vectors and program code. After a reset, the Program Counter points to location zero of
the program space. After a timer interrupt, the Program Counter points the location 0x0004 of the program
space.

After Reset
0x0000 Reset Vector

After Timer Interrupt
0x0005

0x06FF

Figure 4-1 Program Memory Space

4.1.2 Data Memory Organization

The data memory is partitioned into two banks which contain the General Purpose Registers, MCU
Function Registers and USB Function Registers. Bit RP0 is the bank select bit.
RP0 (STATUS<5>) = 1 → Bank 1

RP0 (STATUS<5>) = 0 → Bank 0
The lower locations of each Bank are reserved for MCU Function Registers and USB Function Registers.
Above the MCU Function Registers and USB Function Registers are General Purpose Registers
implemented as SRAM. Both Bank 0 and Bank 1 contain MCU Function Registers. USB Function
Registers are located in Bank 0. Some “high use” MCU Function Registers from Bank 0 are mirrored in
Bank 1 for code reduction and quicker access.

Data Memory

Address

00h INDR 80h INDR
01h TIMER 81h PSCON

Data Memory

Address

→

0x0004 Timer Interrupt Vector

→

1.75K x 14 ROM

Address

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02h PCL 82h PCL
03h STATUS 83h STATUS
04h INDAR 84h INDAR
05h 85h
06h PORT1 86h PORT1CON
07h PORT2 87h PORT2CON
08h 88h
09h 89h

0Ah PCHBUF 8Ah PCHBUF

0Bh INTEN 8Bh INTEN
0Ch 8Ch

0Dh PHVAL 8Dh

0Eh PHSEL 8Eh
0Fh DMODE 8Fh

10h DEVCTL 10h
11h 11h
12h EVTFLG 12h
13h DEVADR 13h
14h FFCNT0 14h
15h FFCNT1 15h
16h FFCTL 16h
17h FFDAT0 17h
18h FFDAT1 18h
19h EP0RXST 19h

1Ah

1Fh

20h

5Fh

60h

7Fh

Bank 0 Bank 1

4.2 USB FUNCTION REGISTERS

Address Name Function

10h DEVCTL Device control register
12h EVTFLG Event flag register
13h DEVADR USB device address register
14h FFCNT0 Byte count buffer for endpoint 0
15h FFCNT1 Byte count buffer for endpoint 1
16h FFCTL FIFO control register

General

Purpose

Registers

(64 bytes)

FFh

Figure 4-2 Data Memory Space

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17h FFDAT0 Endpoint 0 FIFO port
18h FFDAT1 Endpoint 1 FIFO port
19h EP0RXST Endpoint 0 receiving status register

Table 4-1 USB Function Register Summary

DEVCTL (Address 10h, Device control register)

[1]

R/W

R/W R/W R/W R/W R/W

TXSE0 EP0STL EP1STL WAKE WKDIS PWRDN
TXSE0: Set and clear transmitting SE0 bit
1: Set transmitting SE0
0: Clear transmitting SE0
EP0STL: Endpoint 0 stall bit. This bit will be cleared automatically by hardware when SETUP packet is

received
1: Endpoint 0 will respond with a STALL to a valid transaction except SETUP
0: Endpoint 0 will not respond with a STALL to a valid transaction
EP1STL: Endpoint 1 stall bit
1: Endpoint 1 will respond with a STALL to a valid IN transaction
0: Endpoint 1 will not respond with a STALL to a valid IN transaction
WAKE: Wake-up bit
1: Set this bit to wake up host controller by placing USB bus into K state
0: Clear this bit to force USB bus leave K state
WKDIS: Wake-up disable bit. The WAKE bit has no effect if WKDIS bit is set to 1.
1: Disable remote wake-up capability
0: Enable remote wake-up capability
PWRDN: Power -down mode bit. Writing 1 to this bit will enter power-down mode

If USB suspend is detected, firmware can set this bit to enter power -down mode. In power-down
mode, crystal/resonator will stop. The PWRDN bit will be cleared automatically by hardware and
crystal/resonator will restart when the internal RC timer ti meout (about 500ms). Firmware should
check buttons and photo position encoders of the mouse. If mouse status is not changed, Firmware
should set the PWRDN bit to enter power down mode again. Power consumption in suspend mode
depends on how much time the firmware checking mouse status changed. Hardware will also clear
PWRDN bit automatically when USB D+ or D- is toggled.
0: Normal mode, not power -down

Value on POR: “1 - 0 - 0 0 0 0”

[2]

Note 1: “R/W” means readable and writable bit. All reserved fields should not be changed by firmware.
Note 2: “-“ means unimplemented read as 0

EVTFLG (Address 12h, Event flag register)
R/W1C

[1]

R/W1C R/W1C R/W1C R/W1C
RESUME SUSPD EP1TX EP0TX EP0RX
RESUME: Global resume bit
1: Global resume (USB D+/D - toggle) was detected
0: Global resume was not detected
SUSPD: Global suspend bit
1: Global suspend (USB idle more than 3ms) was detected
0: Global suspend was not detected
EP1TX: Endpoint 1 transmitting status bit
1: Data has been sent from endpoint 1
0: Data has not been sent from endpoint 1
EP0TX: Endpoint 0 transmitting status bit
1: Data has been sent from endpoint 0
0: Data has not been sent from endpoint 0
EP0RX: Endpoint 0 receiving status bit

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