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IBM EM78M611E Specification

Ibm universal serial bus product specification
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EM78M611E
Product
Specification
D
. V
1.1
OC
ERSION
ELAN MICROELECTRONICS CORP.
November 2006

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Summary of Contents for IBM EM78M611E

  • Page 1 EM78M611E Product Specification ERSION ELAN MICROELECTRONICS CORP. November 2006...
  • Page 2 Trademark Acknowledgments: IBM is a registered trademark and PS/2 is a trademark of IBM. Windows is a trademark of Microsoft Corporation. ELAN and ELAN logo © 2006 by ELAN Microelectronics Corporation Copyright All Rights Reserved Printed in Taiwan The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes no responsibility concerning the accuracy, adequacy, or completeness of this specification.

  • Page 3: Table Of Contents

    General Description ... 1 Features ... 1 Type Definition... 3 Application... 3 Pin Assignment ... 4 Pin Description ... 6 Block Diagram ... 7 Function Description... 8 Program Memory ... 8 Data Memory ... 9 8.2.1 Special Purpose Register ...9 8.2.2 Operation Registers ...10 8.2.2.1...
  • Page 4 Contents Extra Control Register... 21 USB Application FIFOs ... 21 USB Application ... 22 8.5.1 USB Device Controller ...22 8.5.2 Device Address and Endpoints ...23 Reset ... 23 8.6.1 Power-on Reset...23 8.6.2 Watchdog Reset ...23 8.6.3 USB Reset...23 Saving Power Mode... 23 8.7.1 Power Down Mode ...23 8.7.2...

  • Page 5: General Description

    Identifying and decoding of Standard USB commands to EndPoint Zero PS/2 Application Support Built-in PS/2 port interface for keyboard and mouse Product Specification (V1.11) 04.20.2007 (This specification is subject to change without further notice) Universal Serial Bus Series Microcontroller EM78M611E • • • • 1...
  • Page 6 EM78M611E Universal Serial Bus Series Microcontroller Built-in 8-bit RISC MCU 8-level stacks for subroutine nesting and interrupt 8-bit real time clock/counter (TCC) with overflow interrupt Six available interrupts Built-in RC oscillator free running for Watchdog Timer and Dual clock mode...

  • Page 7: Type Definition

    24-pin PDIP (600mil)/SOP (300mil) (EM78M611EXCP/CM) 24-pin SSOP (150mil) (EM78M611EXEM) Type Definition The EM78M611E series has six types of packaging. Each type is divided into two modules, namely; original, and with both E packaging configuration for each series is defined. Table 3.1 below summarizes which series of the EM78M611E belong to which module.

  • Page 8: Pin Assignment

    EM78M611E Universal Serial Bus Series Microcontroller Pin Assignment D+/CLK.P74 D-/DATA/P75 P92/SE1/PWM1 P93/SE2/PWM2 P94/VPP P50/AD0 P51/AD1 P52/AD2 P53/AD3 P54/AD4 P55/AD5 P56/AD6 P57/AD7 P80/AD8 P81/AD9 Fig. 3-1 EM78M611EXAP (40-Pin DIP) P92/SE1/PWM1 P93/SE2/PWM2 P94/VPP P50/AD0 P51/AD1 P52/AD2 P53/AD3 Fig. 3-2 EM78M611EXAQ (44-Pin QFP) 4 •...
  • Page 9 (This specification is subject to change without further notice) Universal Serial Bus Series Microcontroller P56/AD6 P57/AD7 P60/AD16 P61/AD17 P62/AD18 OSCI OSCO OSCO V3.3 P94/VPP P54/AD4 P55/AD5 P56/AD6 EM78M611E P55/AD5 P54/AD4 P94/VPP P93/SE2/PWM2 P92/SE1/PWM1 D- / DATA /P75 D+ / CLK /P74 V3.3 OSCI P66/AD22 P65/AD21 P64/AD20 P63/AD19 P62/AD18...

  • Page 10: Pin Description

    PWM output pins. USB plus data line interface or CLK for PS/2 keyboard. When the EM78M611E is running in PS/2 mode, this pin will have an internal pulled-high resistor (2.2KΩ), with VDD=5.0V. USB minus data line interface or DATA for PS/2 keyboard.

  • Page 11: Block Diagram

    Universal Serial Bus Series Microcontroller V3.3 3.3V Transceiver Regulator Device Controller Interrupt Control (RSR) DATA & CONTROL BUS Port 9 Port 8 EM78M611E Stack 1 (PC) Stack 2 Stack 3 Stack 4 Stack 5 Stack 6 Stack 7 Stack 8 Instruction Register (Status)

  • Page 12: Function Description

    Furthermore, several registers are used for special purposes. 8.1 Program Memory The program space of the EM78M611E is 6K words, and is divided into six pages. Each page is 1K words long. After a reset, the 13-bit Program Counter (PC) points to location zero of the program space.

  • Page 13: Data Memory

    1 6 x 8 C o m m o n R e g is te r Product Specification (V1.11) 04.20.2007 (This specification is subject to change without further notice) Universal Serial Bus Series Microcontroller Fig. 8-1 Data RAM Organization of EM78M611E EM78M611E • • • • 9...

  • Page 14: Operation Registers

    8.2.2.3 R2 (Program Counter & Stack) Default Value: (0B_0000_0000) The EM78M611E Program Counter is a 13-bit register that allows accessing of the 6k words of the Program Memory with 8 level stacks. The eight LSB bits, A0~A7, are located at R2, while the three MSB bits, A12~A10, are located at R3. The Program Counter is cleared after Power-on reset or Watchdog reset.

  • Page 15: R3 (Status Register)

    Page 0 13FF 1400 Page 0 17FF Bit 6 Bit 5 Bit 4 NOTE NOTE For Borrow, the polarity is reversed. EM78M611E Call Interrupt Stack 1 Stack 2 RETL Stack 3 RETI Stack 4 Stack 5 Stack 6 Stack 7...
  • Page 16 EM78M611E Universal Serial Bus Series Microcontroller R3 [2] Zero flag. It will be set to 1 when the result of an arithmetic or logic operation is zero. R3 [3] Power down flag. It will be set to 1 during Power-on phase or by “WDTC”...

  • Page 17: R4 (Ram Select Register)

    D- / P75 / DATA D+ / P74 / CLK Bit 6 Bit 5 Bit 4 Bit 6 Bit 5 Bit 4 − EM78M611E Bit 3 Bit 2 Bit 1 RAM Bank # Bank 0 Bank 1 Bank 2 Bank 3...

  • Page 18: Ra (Eeprom Control Register

    EM78M611E Universal Serial Bus Series Microcontroller 8.2.2.11 RA (EEPROM Control Register) Default Value: (0B_1111_1111) RA is a command register for EEPROM control. For detailed usage of this register, refer to Section 8.2.3 which describes the EEPROM embedded in the EM78M611E.

  • Page 19: Rd (Usb Application Fifo Address Register)

    TCC Overflow interrupt flag. It will be set while TCC overflows, and is cleared by firmware. RF [1] EndPoint Zero interrupt flag. It will be set when the EM78M611E receives Vendor/Customer Command to EndPoint Zero. This bit is cleared by firmware.

  • Page 20: Control Registers

    EM78M611E Universal Serial Bus Series Microcontroller RF [2] USB Suspend interrupt flag. It will be set when the EM78M611E finds the USB Suspend Signal on USB bus. This bit is cleared by the firmware. RF [3] USB Reset interrupt flag. It will be set when the host issues the USB Reset signal.

  • Page 21: Cont (Control Register)

    (This specification is subject to change without further notice) Universal Serial Bus Series Microcontroller Bit 6 Bit 5 Bit 4 TSR2 TSR1 Watchdog Timer prescaler. PSR1/TSR1 PSR0/TSR0 NOTE EM78M611E Bit 3 Bit 2 Bit 1 TSR0 PSR2 PSR1 TCC Rate WDT Rate 1: 2 1: 1...

  • Page 22: Ioc5 ~Ioc9 I/O (Port Direction Control Registers)

    ClearFeature () requests. 0 : Do Not support remote wake up 1 : Supports remote wake up IOCA[4]: Remote_Wake up bit EM78M611 do NOT support this function. Only EM78M611E does. 18 • • • • Bit 6 Bit 5 Bit 4 Dual_Frq.0...

  • Page 23: Iocb (Port 9 Wake-Up Pin Select Register)

    /P94 Bit 6 Bit 5 Bit 4 − capacity of P90 ~ P97 Bit 6 Bit 5 Bit 4 − /PH95 Port 9. EM78M611E Frequency 500Hz 4kHz 32kHz 256kHz Bit 3 Bit 2 Bit 1 /P93 /P92 /P91 Bit 3...

  • Page 24: Ioce (Special Function Control Register)

    0 : Sleep mode. The EM78M611E is in power down mode. 1 : Run mode. The EM78M611E is working normally. IOCE [5] Watchdog Timer enable bit. The bit disables/enables the Watchdog Timer.

  • Page 25: Iocf (Interrupt Mask Register)

    8.4 USB Application FIFOs For USB Application, EM78M611E provides an 8-byte First-In-First-Out (FIFO) buffer for each endpoint. The buffer cannot be accessed directly. However, a corresponding Data Byte Pointer register for each endpoint is made available to address the individual byte of the FIFO buffer.

  • Page 26: Usb Application

    FIFO. Only when it receives unsupported command will the UDC notify the MCU through interrupt. Hence, the EM78M611E is very flexible under USB application since the developer can freely choose the method of decoding the USB command as dictated by different situation.

  • Page 27: Device Address And Endpoints

    EP1 and EP2 for interrupt endpoint. Sending data to USB host in EM78M611E is very easy. Just write data into EP’s FIFO, then set flag, and the UDC will handle the rest. It will then confirm that the USB host has received the correct data from EM78M611E.

  • Page 28: Dual Clock Mode

    USB Bus. 8.8 Interrupt The EM78M611E has one interrupt vector in 0x0001. When an interrupt occurs during an MCU program run, it will jump to the interrupt vector (0x0001) and execute the instructions sequentially from the interrupt vector. RF is the interrupt status register, which records the interrupt status in the relative flags/bits.

  • Page 29: Pattern Detect Application (Pda)

    IOCF is an interrupt mask register which can be set bit by bit. While their respective bit is written to 0, the hardware interrupt will inhibit, that is, the EM78M611E will not jump to the interrupt vector to execute instructions. But the interrupt status flags still records the conditions no matter whether the interrupt is masked or not.

  • Page 30: Control Register

    EM78M611E Universal Serial Bus Series Microcontroller Pattern Detect Application (PDA) can calculate the length of one pattern and interrupt the MCU while the serial signal is transiting from high to low (or vise-versa). Then the MCU reads the length value from a specified register.
  • Page 31 1500 (Count / mSec) 750 (Count / mSec) 375 (Count / mSec) 188 (Count / mSec) 94 (Count / mSec) 47 (Count / mSec) EM78M611E Debounce Time Sampling clock Sampling clock × 2 Sampling clock × 3 Sampling clock × 4 Sampling clock ×...

  • Page 32: Pulse Width Modulation (Pwm)

    EM78M611E Universal Serial Bus Series Microcontroller After the PDA function is enabled (by setting IOCA[2] to 1), user can write a default value to the High Pattern counter register and Low Pattern counter register. Then set the corresponding interrupt enable bit (IOCF[5]). When the counting value of one “H”...

  • Page 33: Analog-To-Digital Converter (Adc)

    ERA (AD Channel Select Register) Default Value: (0B_0001_1111) Bit 7 Product Specification (V1.11) 04.20.2007 (This specification is subject to change without further notice) Universal Serial Bus Series Microcontroller Bit 6 Bit 5 Bit 4 EM78M611E Clock (Hz) Period/255 (s) Fosc/3 0.5µ Fosc/6 Fosc/12 Fosc/24...
  • Page 34 EM78M611E Universal Serial Bus Series Microcontroller ERA [0~4]: AD Channel Selector ERA [7] AD Converter ready flag 1: Start AD Conversion (set by firmware). 0: When AD conversion is finished and has moved digital data into the AD Data Register, this bit will be set by hardware.

  • Page 35: Eeprom

    Bit 4 Bit 8 Bit 7 Bit 6 Bit 6 Bit 5 Bit 4 Action Read Write Erase Disable EM78M611E Bit 3 Bit 2 Bit 1 Bit 5 Bit 4 Bit 3 Bit 3 Bit 2 Bit 1 ADPS1 Execution Time...

  • Page 36: Absolute Maximum Ratings

    EM78M611E Universal Serial Bus Series Microcontroller Absolute Maximum Ratings Temperature under bias Storage temperature Input voltage Output voltage 10 DC Electrical Characteristic T = 25ºC, VDD=5V, VSS=0V Symbol 3.3V Regulator Output voltage of 3.3V Regulator Low Power Reset detecting low...
  • Page 37 = 3.3V = 10.0mA Sink = 3.3V Input pin with pull-high resistor , = 3.3V Input pin with pull-high resistor , = 5V USB operation Mode EM78M611E Type Max Unit − − − − − − − − − − −...

  • Page 38: Application Circuit

    EM78M611E Universal Serial Bus Series Microcontroller 11 Application Circuit A. BC1 , BC2 : load Capacitor B. C1 (bypass capacitor) : that placed adjacent to V C. C2 , C3 (power capacitor) : that placed adjacent to the Power source , will improve transient response and ripple rejection.

  • Page 39: Appendix

    SR.1 SR.0 EP1_ EP0_R EP2_R EP2_W USB Application FIFO Address Register USB Application FIFO Data Register Port 7 state SE1_IF SE1_IF change_1F Reset_IF EM78M611E Bit 2 Bit1 Bit 0 Default Value 0B_0000_0000 0B_0000_0000 0B_0000_0000 0B_0001_1xxx 0B_0000_0000 0B_0000_0000 0B_0000_u000 0B_0000_0000 0B_u00u_0000...
  • Page 40 EM78M611E Universal Serial Bus Series Microcontroller Control Registers Address Name Bit 7 Bit 6 CONT 0x05 IOC5 0x06 IOC6 0x07 IOC7 0x08 IOC8 0x09 IOC9 Dual_ Dual_ 0x0A IOCA Frq.1 Frq.0 0x0B IOCB /P96 0x0C IOCC 0x0D IOCD /P96 /Dual...

  • Page 41: B Instruction Set

    Bits 8~9 of R2 unchanged A → R MOV R,A 0 → A CLRA 0 → R CLR R R-A → A SUB A,R R-A → R SUB R,A EM78M611E Status Affected None None T, P T, P None None None None None...
  • Page 42 EM78M611E Universal Serial Bus Series Microcontroller Binary Instruction 0 0001 10rr rrrr 01rr 0 0001 11rr rrrr 01rr 0 0010 00rr rrrr 02rr 0 0010 01rr rrrr 02rr 0 0010 10rr rrrr 02rr 0 0010 11rr rrrr 02rr 0 0011 00rr rrrr...

  • Page 43: C Code Option Register

    C Code Option Register EM78M611E has two Code option registers, which are not part of the normal program memory. The option bits cannot be accessed during normal program execution. Address 000: Mnemonic ID_8 ID_7 ID_6 ID_5 ID_4 ID_3 ID_2 ID_1 ID_0 OST_1 OST_0 Frequency /Protect...
  • Page 44 EM78M611E Universal Serial Bus Series Microcontroller Bit 4 (/R.S.) : D- Pull-up Resistance 0 : Connect Resistor Switch 1 : Disconnect Resistor Switch Bit 5 (/AD_Hold) : Halts the MCU during AD conversion 0 : Halts the MCU during AD conversion...

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