TC5299J TC5299J FAST ETHERNET PCMCIA LAN CONTROLLER 4FL No. 106 Hsin-Tai Wu Road, Sec. 1, Hsichih, Taipei Hsien, Taiwan R.O.C. TEL: 886-2-2696-1669 FAX: 886-2-2696-2220 http:\\www.tmi.com.tw -1- Ver. 0.1 07/04/01 TC5299J TABLE OF CONTENTS 1 Introduction .................................................................................................................................3 1.1 General Description.............................................................................................................................................3 1.2 Features ...............................................................................................................................................................3 2 3 Block Diagram .............................................................................................................................3 Pin Description.............................................................................................................................4 3.1 Pin Out Diagram .................................................................................................................................................4 3.2 Signal Description ...............................................................................................................................................5 3.3 Power On Configuration .....................................................................................................................................8 4 I/O and Mapping .......................................................................................................................10 4.1 I/O Port Address Mapping ................................................................................................................................10 4.2 EEPROM/SRAM Memory Mapping ................................................................................................................10 4.3 Attribute Memory Mapping ..............................................................................................................................11 4.3.1 Attribute Memory Map ......................................................................................................................11 5 Configuration Registers ............................................................................................................13 5.1 5.2 5.3 5.4 5.5 5.6 5.7 Configuration Register A ..................................................................................................................................13 Configuration Register B ..................................................................................................................................13 Configuration Register C ..................................................................................................................................14 Hardware Configuration....................................................................................................................................14 MII/PHY Control Register ................................................................................................................................15 TC5299J Core Registers Assignment................................................................................................................15 Register Descriptions ........................................................................................................................................18 5.7.1 Command Register (CR) 00H (Read/Write) ......................................................................................18 5.7.2 Data Configure register (DCR) 0EH(Write) ....................................................................................19 5.7.3 Transmit configuration Register (TCR) 0DH(Write) ........................................................................19 5.7.4 Transmit Status Register (TSR) 04H(Read).....................................................................................20 5.7.5 Receive Configuration Register (RCR) 0CH(Write)........................................................................21 5.7.6 Receive Status Register (RSR) 0CH(Read)......................................................................................21 5.7.7 Interrupt Mask Register (IMR) 0FH(Write) ....................................................................................22 5.7.8 Interrupt Status Register (ISR) 07H(Read/Write)............................................................................23 5.8 Network Tally Counter Registers (CNTR)........................................................................................................23 5.9 Number of Collisions Register (NCR) ..............................................................................................................24 5.10 Physical Address Register (PAR0-PAR5).........................................................................................................24 5.11 Multicast Address Registers (MAR0-MAR7)...................................................................................................24 5.12 DMA Registers..................................................................................................................................................25 5.13 LOCAL DMA RECEIVE REGISTERS ...........................................................................................................25 5.14 REMOTE DMA REGISTERS..........................................................................................................................25 5.15 (i) Local DMA Transmit Registers ...................................................................................................................25 5.16 (ii) Local DMA Receive Registers ....................................................................................................................26 5.17 (iii) Remote DMA registers...............................................................................................................................26 6 Electrical Specification and Timing.........................................................................................28 7 Physical Dimension....................................................................................................................31 Notice .................................................................................................................................................32 -2- Ver. 0.1 07/04/01 TC5299J Fast Ethernet PCMCIA Controller 1 Introduction 1.1 General Description The TC5299J is a 10/100 PCMCIA Ethernet controller, include a standard MII interface. It provides an 8/16-bit PCMCIA interface to host CPU and buffer memory into single chip to minimize the chip gate count. The TC5299J supports both half-duplex and full-duplex (both 10BT or 100BTX) operation environment. 1.2 Features !"PCMCIA 2.01 bus interface. !"Use serial EEPROM 93C56/66 to store CIS. !"Internal 5V to 3.3V regulator. Ethernet LAN features: !"Integrated Fast Ethernet MAC and SRAM in one chip. !"Supports both 10Mbps and 100Mbps operation. !"IEEE 802.3/802.3u compatible. !"Full-duplex or half-duplex operation supported for both 10Mbps and 100Mbps operation. !"NE2000 register definitions. !"Supports 3.3V or 5V signaling environment. !"The size of built-in Buffer RAM is 8k x 16 bits. It does not need the extra SRAM in the application circuit. !"Supports loop-back mode for self-testing. !"Supports 256/512 bytes EEPROM interface. !"LED interface supported. !"Supports MII bus interface. !"Flow control ability 2 Block Diagram E EP R O M E EP R O M C ontrol C ircuit P C M C IA Interface P C M C IA C ommand D ecoder D M A B u ffer C ontrol Logic SRAM F IFO s MAC PHY TW R R J45 F IFO C ontroller -3- Ver. 0.1 07/04/01 TC5299J 3 Pin Description 3.1 Pin Out Diagram V V C C C C 5 A N A R C N C G N D A R G N G G D N N A D D 1 A D N 0 P P C V C V V C C C A C C 1 A D 0 P P V G C N C D 3 3 N N N I N I C C C O C O G N D 3 N N D C C G N M D D 3 I D O V G L C N E E C L L D E D 3 E E 3 C L I D D I X S A O S F O 2 X 1 G N D 3 I O 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 NC 97 64 VCC3D NC 98 63 VCC5A GNDAT 99 62 VCC5R VCCAT 100 61 VCC5A VCC5A 101 60 VCC3IO VCC5R 102 59 MDC NC 103 58 RXD3 VCC3IO 104 57 RXD2 RSTN 105 56 GND3IO GND3IO 106 55 RXD1 JMP0 107 54 RXD0 GND3D 108 53 X25M GND3IO 109 52 RXDV JMP1 110 51 RXC NC 111 50 RXER VCC3D 112 49 GND3IO VCC3IO 113 48 TXC SD15 114 47 TXEN SD14 115 46 TXD0 SD13 116 45 TXD1 SD12 117 44 GND3IO GND3IO 118 43 TXD2 SD11 119 42 TXD3 SD10 120 41 GND3D VCC3D 121 40 COL SD9 122 39 CRS SD8 123 38 VCC3IO VCC3IO 124 37 EXLEDF INT 125 36 EXLEDL IOR 126 35 CE1 OE 127 34 WE GND3IO 128 33 NC TC5299J 128pin LQFP 1 2 3 4 5 V I S C O A C W 9 3 I O S A 8 S A 7 6 7 8 G S N A D 6 3 D S A 5 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 S A 4 S A 3 S A 2 S A 1 G S N A D 0 3 I O N R W I R C S A N E T I P G T A C K -4- G I S S S V S S V S S N O D D D C D D C D D D I 0 1 2 C 3 4 C 5 6 3 3 3 S D I I 1 O O 6 S G D N 7 D 3 I O Ver. 0.1 07/04/01 TC5299J 3.2 Signal Description PCMCIA Bus Interface Pins Symbol Pin # I/O SA[9:0] 3-5 7-12, 14 114-117, 119-120, 122-123, 31-29, 27-26, 24-22 16 I The address signal lines of PCMCIA Bus are used to select a register to be read or written and attribute memory enabled. I/O Register Access, with DMA inactive, SD0-SD7 are used to read/write register data. SD8-SD15 invalid during this state. Remote DMA Bus Cycle, SD0-SD15 contain packet data. Direction of transfer depends on Remote read/write. I/O RSTZ 105 O RST is active high and places the TC5299J in a reset mode immediately. During falling edge the TC5299J controller loads the configuration from JMP0 – JMP8. RSTZ is an active low signal. It is an inverted signal of RST. WAIT* 17 O REG* 19 I IOR* 126 I IOW* 2 I OE* 127 I WE* 34 I INPACK* 18 O IO16* 21 O INT* (RDY/BSY*) 125 O CE1* 35 I SD[15:8] SD[7:0] RST Description This pin is set low to insert wait states during Remote DMA transfer. REG is an active low input used to determine whether a host access is to Attribute memory or to common memory. If REG is low the access is to attribute memory, if REG* is high the access is to common memory. REG* is also asserted low for all accesses to the TC5299J IO Registers. Read Strobe: Strobe from host to read registers or Remote DMA read. Write Strobe: Strobe from host to read registers or Remote DMA write. Host memory read strobe, when OE* and REG* both low the attribute memory can be read. When OE* is low and REG* is high common memory can be read. Host memory write strobe, After Power reset if TC5299J is configured to memory write enable, then WE and REG* is both low, Attribute memory can be written. When WE is low and REG* is high common memory can be written. An active low signal. Asserted if the host access register or Remote DMA read cycle. IO16* is driven by TC5299J to support host 16 bits access cycle. While the TC5299J is configured as a memory device, this pin servers as RDY/BSY* pin, If the TC5299J is ready to perform a transfer, this pin is set high. When TC5299J is operated at I/O mode, this pin is used as an interrupt pin. It indicates that the TC5299J needs host service. RDY/BSY* state can be read from the pin Replacement Register (CCR2). While LAN and MODEM both functions are enabled and IntSel bit in control Register (CCR5) is zero. This pin output is logical OR of LAN and MODEM interrupt. Card enable 1, is active low signals driven by the host. This signal provides a card select based on the address decode (decode by the host). -5- Ver. 0.1 07/04/01 TC5299J EEPROM/LED Interface Pins Symbol Pin # I/O Description EECS 73 O EEPROM chip select. It is asserted when to access EEPROM. EESK/LEDLA 72 O DO/LEDS 70 I/O DI/LEDF 69 O Link (on/off) & Receive data (Blink) LED pin. It is also used as a serial clock for EEPROM data loading. Speed (100M:ON/10M:OFF) & transmit data (Blink) LED pin. It is also used as a signal for EEPROM data loading. Full-duplex (ON/OFF, Full/Half-duplex) & Collision (Blink) LED pin. It is a data output pin for EEPROM writing. External PHY / MII Interface Pins Symbol Pin # I/O TXD[3:0] 42-43, 45-46 O TXEN 47 I/O TXC 48 I 58-57, 55-54 I RXC 51 I RXDV 52 I RXER 50 I COL 40 I CRS 39 I MDC 59 O MDIO 74 I/O EXLEDL 36 I Data valid is asserted by an external PHY when receive data is present on the RXD[3:0] lines and is deasserted at the end of the packet. This signal should be synchronized with the RXC signal. Data valid is asserted by an external PHY when receive data is present on the RXD[3:0] lines and is deasserted at the end of the packet. This signal should be synchronized with the RXC signal. This pin functions as the collision detect. When the external physical layer protocol (PHY) device detects a collision, it asserts this pin. In MII mode this pin functions as the carrier sense and is asserted by the PHY when the media is active. MII management data clock is sourced by the TC5299J to the external PHY devices as a timing reference for the transfer of information on the MDIO signal. MII management data input/output transfers control information and status between the external PHY and the TC5299J. Low active; presents the external PHY link status. EXLEDF 37 I Present the half/full duplex mode for external PHY. Pin # I/O RXD[3:0] Description Four parallel transmit data lines. This data is synchronized to the assertion of the TXC signal and is latched by the external PHY on the rising edge of the TXC signal. This pin function as transmit enable. It indicates that a transmission is active on the MII port to an external PHY device. Pull down this pin on power-on reset to select 50MHz-clock input from pin X1. Otherwise, use 25MHz-clock input. Supports the transmit clock supplied by the external PMD device. This clock should always be active. Four parallel receive data lines. This data is driven by an external PHY that attached the media and should be synchronized with the RXC signal. Supports receive clock from PHY. And is recovered by the PHY. Clock Interface Pins Symbol Description X1 66 I CRYSTAL OR EXTERNAL OSCILLATOR INPUT: 50 MHz X2 67 O X25M 53 O CRYSTAL FEEDBACK OUTPUT: used in crystal connection only. 25MHz clock output -6- Ver. 0.1 07/04/01 TC5299J Power Supply Pins Symbol Pin # I/O 95 92 87 91 86 90 85 89 100 99 101, 96, 63, 61 PWR GND Power input for internal circuit. PWR, GND PWR Power input for internal circuit. 5V power input pin. VCC5R 102, 62 PWR 5V power reference pin. VCC3D, GND3D 121, 112, 28, 64 6, 41, 75, 78, 108 1, 25, 38, 60, 71, 81, 104, 113, 124 13, 20, 32, 44, 49, 56, 65, 68, 79, 106, 118, 128 PWR, GND 3.3V power input pin, for digital core circuit. PWR, 3.3V power input pin, for I/O PAD. VCCAR GNDAR VCCA10 GNDA10 VCCAP GNDAP VCCDP GNDDP VCCAT GNDAT VCC5A VCC3IO GND3IO Description GND JUMPER Interface Pins Symbol Pin # I/O JMP0 107 I JMP1 110 I Description When power on setting, this bit directly locked to CCR0, bit5. 0: enable I/O. For embedded system use to enable I/O mode. 1: disable I/O. For PCMCIA system use only. Default setting is leaving this pin open. Power on setting: 0: separate address decode. Decode range from A0 to A5. 1: full address decode. Decode range from A0 to A9. No Connection Pins Symbol Pin # NC 15, 103, 111, 33 NC 97, 98, 93, 94, 83, 77, 84, 82, 80, 76, 88 I/O Description No Connection No Connection. Reserved for future use for PHY is included in a single chip. -7- Ver. 0.1 07/04/01 TC5299J 3.3 Power On Configuration The TC5299J Controller configures itself after a RST signal is applied. When a Power-On-Reset occurs the TC5299J controller latches up the values on the configuration pins and uses these to configure the internal registers and options. Internally these pins contain pull-up resistance. If pins are unconnected they have default logic. The configuration registers are loaded JMP0 & JMP1 setting when RST goes inactive. A Power-On-Reset also causes the Controller to load the internal PROM from the EEPROM, which can take up to 3 ms. This occurs after “Config-Regs.” has completed. If EECONFIG is high the configuration data loaded on the falling edge of RST will be overwritten with data read from the serial EEPROM. Regardless of the level on EECONFIG the PROM store will always be loaded with data from the serial EEPROM during the time specified as EELOAD. Figure 1 shows how the RESET circuitry operates. VCC RESET Regload EEload The TC5299J Controller use a 93C56/66 EEPROM, The programmed contents of the EEPROM is shown as following. D15 D8 CIS byte n 13H 12H 11H 10H 0FH 0EH ::::: 08H 07H ::::: 04H 03H 02H 01H 00H D7 D0 CIS byte n-1 ........ ........ CIS byte 3 CIS byte 1 Not Used Config. B Reserved 42H 57H Reserved Reserved Reserved ........ ........ CIS byte 2 CIS byte 0 Config C Config. A Reserved 42H 57H Reserved Reserved bit [0]: 8-bit enable bit [7:1]: Reserved Enet Address 5 Enet Address 4 Enet Address 3 Enet Address 2 Enet Address 1 Enet Address 0 EEPROM Programming Map -8- Ver. 0.1 07/04/01 TC5299J Storing and Loading Configuration from EEPROM: During boot up the TC5299J Controller's configuration is read from the EEPROM, before the PROM data is read. The configuration data is stored within the address 0EH, 0FH (as above table) of the EEPROM's address space. Configuration Register A, B and C are located in the address 0EH. To write this configuration into the EEPROM, the user can program register in TC5299J's address 02H of page 3. This operation will work regardless of the level on EECONFIG. -9- Ver. 0.1 07/04/01 TC5299J 4 I/O and Mapping 4.1 I/O Port Address Mapping This chip is register-liked with Novell's NE2000. The base I/O address of TC5299J Controller is configured by Configuration Register (either upon power up or by software writing to this register). At that address the following structure appears. Base+00H TC5299J Core Registers Base+0FH Base+10H Data Transfer Port Base+17H Base+18H Reset Port Base+1FH The registers within this area are 8 bits wide, but the data transfer port is 16 bits wide. By accessing the data transfer port (using I/O instructions) the user can transfer data to or from the TC5299J 's internal memory. 4.2 EEPROM/SRAM Memory Mapping The TC5299J Controller's internal memory map is as shown below. D15 D7 D0 0000H PROM 001FH Reserved 4000H 8K x 16 Buffer RAM 7FFFH TC5299J Core Memory Map PROM Location 00h 01h 02h 03h 04h 05h 06-0Dh 0E,0Fh 10-15h 16-1Dh 1E-1Fh Location Contents ETHERNET ADDRESS 0 ETHERNET ADDRESS 1 ETHERNET ADDRESS 2 ETHERNET ADDRESS 3 ETHERNET ADDRESS 4 ETHERNET ADDRESS 5 RESERVED 57h ETHERNET ADDRESS 0-5 RESERVED 42h Contents of PROM Map -10- Ver. 0.1 07/04/01 TC5299J TC5299J Controller actually has 32k-address range but only does partial decoding on these devices. 0000H – 001FH is PROM address and 4000H – 7FFFH is Buffer RAM address, otherwise is reserved. To access either the PROM or the RAM buffer which user must initiate a Remote DMA transfer between the I/O port and memory. Remote Read/Write Cache: The TC5299J Controller includes 4 words cache internally. On a remote read the TC5299J Controller moves data from memory buffer to the cache buffer; the TC5299J moves data continuously until the cache buffer is full. On a remote write the system can writes data into the cache buffer until the 4 words cache buffer is full. 4.3 Attribute Memory Mapping PCMCIA CIS Structures & Decode Function: The TC5299J supports access to 1K of attribute Memory. Attribute memory is defined by the PCMCIA standard to be comprised of the card information structure and four 8-bits Card Configuration Registers. These four registers are contained in the TC5299J. 4.3.1 Attribute Memory Map The attribute Memory map for a PCMCIA card is shown below. Address Description 00H-3E0H Attribute Memory 3F0H (CCR4) I/O Event indication Register 3F2H (CCR5) Control Register 3F4H-3F6H Reserved 3F8H(CCR0) Configuration Option Register 3FAH(CCR1) Card Configuration and Status Register 3FCH(CCR2) Pin Replacement Register 3FEH(CCR3) Reserved Card Option Registers 0 (R/W): 3F8H (CCR0) D7 D6 D5 D4 D3 D2 D1 D0 SRESET XX PCMIOEN XX XX XX PJ1 PJ0 Name Description PJ0-PJ1 SRESET If JMP1 pulled low during power on reset and FUNC=0, The two bits select one of 4 I/O base address. (shows as below) To set high make the card enter I/O mode. The function also can be set by JMP0 (MCS) when Power On Reset. Setting this bit to high, place the card enter reset mode. XX Reserved PCMIOEN JMP1 does not pull-low during power on reset. -11- Ver. 0.1 07/04/01 TC5299J Ethernet I/O address range PJ1 PJ0 Address Range 0 0 300H-31FH 0 1 320H-33FH 1 0 340H-35FH 1 1 360H-37FH Card Configuration and Status Registers (R/W): 3FAH (CCR1) D7 D6 D5 D4 D3 D2 D1 D0 XX XX XX XX XX XX Ireq XX Name Description Ireq Interrupt. This bit describes the interrupt signal of LAN or MODEM 1: LAN interrupt 0: Modem interrupt Reserved XX -12- Ver. 0.1 07/04/01 TC5299J 5 Configuration Registers 5.1 Configuration Register A To prevent any accidental writes of this register it is”hidden” behind a previously unused register. Register 0AH in the Controller's Page 0 of registers was previously reserved on a read. Now Configuration Register A can be read at that address and can be written to by following a read to 0AH with a write to 0AH. If any other Controller register accesses take place between the read and the write then the write to 0AH will access the Remote Byte Count Register 0. 7 6 5 4 XX FREAD FDUPLEX 3 LNK_CFG FULL_CFG 2 1 0 IO16CON MIISEL1 MIISEL0 Name R/W Description MIISEL[1:0] R/W IO16CON R/W FULL_CFG R/W LNK_CFG R/W FDUPLEX R PCMIOALL EL 10: Default value to active the MII bus. Other: reserved. When this bit is set high the Controller generates IO16* after REG* active. If low this output is generated only on address decode. The bit is described EXLEDF what the polarity is. 0: Low active/ Hi inactive 1: Hi active/ Low inactive The bit is described EXLEDL what the polarity is. 0: Low active/ Hi inactive 1: Hi active/ Low inactive The Full-Duplex setting bit. 1: Full-duplex mode, 0: Half-duplex mode The bit is indicated the decode-number of SA[9:0]. 0: Only decode 5 address-lines, SA[5:0]. 1: Full decode 10 address-lines, SA[9:0]. The TC5299J Controller supports 4 words Remote DMA read/write cache. When this bit is set high, Remote DMA cache control will be enabled. Reserved FREAD R/W XX PS. EL: The bit only set on EEPROM loading. 5.2 Configuration Register B To prevent any accidental writes of his register it is ”hidden” behind a previously unused register. Register 0BH in the Controller's Page 0 of registers was previously reserved on a read. Now Configuration Register B can be read at that address and can be written to by following a read to 0BH with a write to 0BH. If any other Controller register accesses take place between the read and the write then the write to 0BH will access the Remote Byte Count Register 1. Name LCIM 7 6 5 4 3 2 1 0 XX LINT EXTRMII MIICINT MIICIM LINK LCINT LCIM R/W R/W Description The interrupt mask bit for link status changed. When set to “1”, the Interrupt will generate on link status changed. -13- Ver. 0.1 07/04/01 TC5299J LCINT R/W MIICIM R/W The Link-Changed interrupt report bit. 1: indicates the Link status changed. When this bit is high, link test integrity checking is good. Otherwise, indicate link signal lost. This bit should be set to 0. LINK R MIICINT R/W This bit should be set to 0. EXTRMII R This bit should be set to 0. LINT R/W XX 5.3 X LAN interrupt status indicator. To write a one to this bit can reset it. Reserved Configuration Register C This register just set in EEPROM and it can’t been read from user. Name 7 6 5 4 3 2 1 0 XX XX XX FE RBHI1 RBHI0 RBLO1 RBLO0 R/W RBLO [1:0] X RBHI [1:0] X FE X XX X Description This is low value of receive buffer setting on full-duplex flow-control. It means that are few data in Rx buffer. 00: Less than 1.5K data in Rx buffer. 01: Less than 3k data in Rx buffer. 10: Less than 4.5k data in Rx buffer. 11: Less than 6k data in Rx buffer. That is high value of receive buffer setting on full-duplex flow-control. It means that is few space in Rx buffer. 00: Less than 1.5K space in Rx buffer. 01: Less than 3k space in Rx buffer. 10: Less than 4.5k space in Rx buffer. 11: Less than 6k space in Rx buffer. Flow control enable bit in full-duplex mode. 0: Disable flow-control. 1: Enable flow-control. Reserved PS. X: Can’t read, just set these bit in the EEPROM. 5.4 Hardware Configuration These functions are configured during a power on RESET. Symbol I/O Description JMP0 I/O JMP1 I/O Power on setting: 0: Enter I/O mode (Same as CCR0, bit 5) Power on setting: 1: Full address decode(A9-A0) 0: Separate address decode(A5-A0) -14- Ver. 0.1 07/04/01 TC5299J Programming Register (R/W) The Controller enable software (driver) programming EEPROM or testing interrupt signal through this register directly. It is located at core register Page3 base+02H. 7 6 5 4 3 2 1 0 EESEL FIRQ XX READ CS SK DI DO(r) ATTRDIS Name Description EESEL, CS, SK, DI, DO FIRQ The software can read or programming serial EEPROM directly through accesses these bits. EESEL should be set high before starting the EEPROM read/write. READ TC5299J can reload CFGA, CFGB and internal PROM, if this bit is set high. When reload state is completed, READ will be cleared to low. Attribute and common memory access will be disable if it is programmed to high. NOTE: DO: read only ATTRDIS: write only This chip interrupt signal IRQ will be asserted when this bit is set high. ATTRDIS 5.5 MII/PHY Control Register The controller can access PHYTER register via software driver. It is located at core register Page3 base+03H. 7 6 5 4 3 2 1 0 XX FE XX XX MDI MDIR MDO MDC Name R/W MDC W MII Management Clock MDO W MII Management Write Data. MDIR W MDI R MII Management Operation Mode Defines the operation of PHY. When set, the PHY is in read operation mode. When clear, the PHY is in write operation mode. MII Management Data In. FE R/W XX X 5.6 Description Flow control enable bit in full-duplex mode. The bit can be set when EEPROM loading. 0: Disable flow-control. 1: Enable flow-control. Reserved TC5299J Core Registers Assignment All registers are 8-bit wide and mapped into four pages, which are selected in the Command Register (PS0, PS1). -15- Ver. 0.1 07/04/01 TC5299J Pins A0-A3 are used to address registers within each page. Page 0 register are those registers which are commonly accessed during TC5299J Controller operation while Page 1 registers are used primarily for initialization. The registers are partitioned to avoid having to perform two read/write cycles to access commonly used registers. Register Assignments: Page 0 Address Assignments (PS1=0,PS0=0) A0-A3 RD WR 00H Command(CR) Command(CR) 01H Current Local DMA Address 0 (CLDA0) Page Start Register (PSTART) 02H Current Local DMA Address 1 (CLDA1) Page Stop Register (PSTOP) 03H Boundary Pointer (BNRY) Boundary Pointer (BNRY) 04H Transmit Status Register(TSR) Transmit Page Start Address (TPSR) 05H Number of Collisions Register(NCR) Transmit Byte Count Register 0 (TBCR0) 06H FIFO(FIFO) Transmit Byte Count Register 1 (TBCR1) 07H Interrupt Status Register(ISR) Interrupt Status Register(ISR) 08H Current Remote DMA Address 0(CRDA0) Remote Start Address Register 0(RSAR0) 09H Current Remote DMA Address 1(CRDA1) Remote Start Address Register 1(RSAR1) 0AH Config. Register A (CFGA) Remote Byte Count Register 0(RBCR0) 0BH Config. Register B (CFGB) Remote Byte Count Register 1(RBCR1) 0CH Receive Status Register(RSR) Receive Configuration Register(RCR) 0DH Tally Counter 0(Frame alignment Errors) (CNTR0) Tally Counter 1 (CRC errors) (CNTR1) Transmit Configuration Register(TCR) 0EH 0FH Tally Counter 2 (Missed Packet Errors) (CNTR2) Data Configuration Register(DCR) Interrupt Mask Register(IMR) Page 1 Address Assignments (PS1=0,PS0=1) A0-A3 RD WR 00H Command(CR) Command(CR) 01H Physical Address Register 0(PAR0) Physical Address Register 0(PAR0) 02H Physical Address Register 1(PAR1) Physical Address Register 1(PAR1) 03H Physical Address Register 2(PAR2) Physical Address Register 2(PAR2) 04H Physical Address Register 3(PAR3) Physical Address Register 3(PAR3) 05H Physical Address Register 4(PAR4) Physical Address Register 4(PAR4) 06H Physical Address Register 5(PAR5) Physical Address Register 5(PAR5) 07H Current Page Register(CURR) Current Page Register(CURR) 08H Multicast Address Register 0(MAR0) Multicast Address Register 0(MAR0) 09H Multicast Address Register 1(MAR1) Multicast Address Register 1(MAR1) 0AH Multicast Address Register 2(MAR2) Multicast Address Register 2(MAR2) 0BH Multicast Address Register 3(MAR3) Multicast Address Register 3(MAR3) 0CH Multicast Address Register 4(MAR4) Multicast Address Register 4(MAR4) 0DH Multicast Address Register 5(MAR5) Multicast Address Register 5(MAR5) -16- Ver. 0.1 07/04/01 TC5299J Page 1 Address Assignments (PS1=0,PS0=1) A0-A3 RD WR 0EH Multicast Address Register 6(MAR6) Multicast Address Register 6(MAR6) 0FH Multicast Address Register 7(MAR7) Multicast Address Register 7(MAR7) Page 2 Address Assignments (PS1=1,PS0=0) A0-A3 RD WR 00H Command(CR) Command(CR) 01H Page Start Register (PSTART) Current Local DMA Address 0(CLDA0) 02H Page Stop Register (PSTOP) Current Local DMA Address 1(CLDA1) 03H Remote Next Packet Pointer Remote Next Packet Pointer 04H Transmit Page Start Address(TPSR) Reserved 05H Local Next Packet Pointer Local Next Packet Pointer 06H Address Counter (Upper) Address Counter (Upper) 07H Address Counter (Lower) Address Counter (Lower) 08H Reserved Reserved 09H Reserved Reserved 0AH Reserved Reserved 0BH Reserved Reserved 0CH Receive Configuration Register(RCR) Reserved 0DH Transmit Configuration Register(TCR) Reserved 0EH Data Configuration Register(DCR) Reserved 0FH Interrupt mask Register(IMR) Reserved Note: Page 2 registers should only be accessed for diagnostic purposes. They should not be modified during normal operation. Page 3 Reserved should never be modified. Page 3 Address Assignments (PS1=1,PS0=1) A0-A3 RD WR 00H Command(CR) Command(CR) 01H Reserved Reserved 02H Programming Reg. Programming Reg. 03H MII Control Register MII Control Register 04H Reserved Reserved 05H Reserved Reserved 06H Reserved Reserved 07H Reserved Reserved 08H Reserved Reserved 09H Reserved Reserved 0AH Reserved Reserved 0BH Reserved Reserved -17- Ver. 0.1 07/04/01 TC5299J Page 3 Address Assignments (PS1=1,PS0=1) A0-A3 5.7 RD WR 0CH Reserved Reserved 0DH Reserved Reserved 0EH Reserved Reserved 0FH Reserved Reserved Register Descriptions 5.7.1 Command Register (CR) 00H (Read/Write) The Command Register is used to initiate transmissions, enable or disable Remote DMA operations and to select register pages. To issue a command the microprocessor sets the corresponding bit(s) (RD2, RD1, RD0 and TXP). Further commands may be overlapped, but with the following rules: (1) if a transmit command overlaps with a remote DMA operation, bits RD0, RD1, and RD2 must be maintained for the remote DMA command when setting the TXP bit. Note, if a remote DMA command is re-issued when giving the transmit command, the DMA will complete immediately if the remote byte count register have not been reinitialized. (2) If a remote DMA operation overlaps a transmission, RD0, RD1, and RD2 may be written with the desired values and a ”0”to this bit has no effect. (3) A remote write DMA may not overlap remote read operation or visa versa. Either of these operations must either complete or be aborted before the other operation may start. Bits PS1, PS0, RD2, and STP may be set any time. 7 6 5 4 3 2 1 0 PS1 PS0 RD2 RD1 RD0 TXP STA STP Bit Symbol Description D0 STP D1 STA D2 TXP D3-D5 RD0-RD2 D6,D7 PS0,PS1 Stop: Software reset command, take the controller offline, no packets will be received or transmitted. Any reception of transmission in progress will continue to completion before entering the reset state. To exit this state, the STP bit must be reset. The software reset has executed only when indicated by the RST bit in the ISR being set to a 1. STP powers up high. Start: This bit is used to active the TC5299J core after either power up, or when the TC5299J core has been placed in a reset mode by software command. STA power up low. Transmit Packet: This bit must be set to initiate transmission of a packet. TXP is internally reset either after the transmission is completed or aborted. This bit should be set only after the Transmit Byte Count and Transmit Page Start registers have been programmed. TXP powers up low. Remote DMA Command: These three encoded bits control operation of the Remote DMA channel. RD2 can be set to about any Remote DMA command in progress. The Remote Start Addresses are not restored to the starting address if the Remote DMA is aborted. RD2 powers up high. RD2 RD1 RD0 0 0 0 Not Allowed 0 0 1 Remote Read 0 1 0 Remote Write (Note) 0 1 1 Send Packet 1 X X Abort/Complete Remote DMA (Note) Page Select: Three two encoded bits select which register page is to be accessed with addresses A0-3. PS1 PS0 0 0 Register Page 0 -18- Ver. 0.1 07/04/01 TC5299J Bit Symbol Description 0 1 1 5.7.2 1 0 1 Register Page 1 Register Page 2 Register Page 3 Data Configure register (DCR) 0EH(Write) This Register is used to program the TC5299J for 8 or 16-bit memory interface, select byte ordering in 16-bit applications and establish FIFO thresholds. The DCR must be initialized prior to loading the Remote Byte count Registers. 7 6 5 4 3 2 1 0 - FT1 FT0 - LS - - WTS Bit Symbol Description D0 WTS D1 - Word Transfer Select 0: Selects byte-wide DMA transfers. 1: Selects word-wide DMA transfers Note: When word-wide mode is selected, up to 32k bytes are addressable; A0 remains low. Reserved D2 - Reserved D3 LS D4 - Loopback Select 0: Loopback mode selected. Bits D1, D2 of the TCR must also be programmed for Loopback mode selected. 1: Normal Operation. Reserved D5,D6 FT0,FT1 5.7.3 FIFO Threshold Select: Encoded: FIFO threshold. During reception, the FIFO threshold indicates the number of bytes (or words) the FIFO has filled serially from the network before the FIFO is emptied onto memory bus. RECEIVE THRESHOLDS FT1 FT0 Word Wide Byte Wide 0 0 2 Word 4 Bytes 0 1 4 Word 8 Bytes 1 0 8 Word 16 Bytes 1 1 12 Word 24 Bytes During transmission, the FIFO threshold indicates the number of bytes (of words) the FIFO has filled from the Local DMA before being transferred to the memory. Thus, the transmission threshold is 16 bytes less the receive threshold. Transmit configuration Register (TCR) 0DH(Write) The transmit configuration establishes the actions of the transmitter section of the TC5299J during transmission of a packet on the network, LB1 and LB0 power up as 0. 7 6 5 4 3 2 1 0 - - - OFST ATD LB1 LB0 CRC Bit Symbol Description D0 CRC Inhibit CRC -19- Ver. 0.1 07/04/01 TC5299J 0: CRC appended by transmitter 1: CRC inhibited by transmitter Encoded Loopback Control: These encoded configuration bits set the type of loopback that is to be performed. Note that loopback in mode 2 sets the LPBK pin high, this places the TC5299J in loopback mode and that D2 of the DCR must be set to zero for loopback operation. LB1 LB0 Mode0 0 0 Normal Operation (LPBK=0) Mode1 0 1 Internal Loopback (LPBK=0) Reserved 1 0 Reserved 1 1 Reserved D1,D2 LB0,LB1 D3 - D4 OFST D5 - Collision Offset Enable: This bit modifies the back off algorithm to allow prioritization of nodes. 0: Backoff Logic implements normal algorithm. 1: Forces Backoff algorithm modification to 0 to 2mim(3+n,10) slot times for first three collisions, Then follows standard backoff. (For first three collisions station has higher average backoff delay making a low priority mode.) Reserved D6 - Reserved D7 - Reserved 5.7.4 Transmit Status Register (TSR) 04H(Read) This register records events that occur on the media during transmission of a packet. It is cleared, when the next transmission is initiated by the host. All bits remain low unless the event that corresponds to a particular bit occurs during transmission. Each transmission should be followed by a read of this register. The contents of this register are not specified until after the first transmission. 7 OWC 6 5 4 3 2 1 0 FU CRS ABT COL - PTX Bit Symbol Description D0 PTX D1 - Packet Transmitted: Indicates transmission without error (No excessive collisions or FIFO underrun) (ABT=”0”, FU=”0”). Reserved D2 COL D3 ABT D4 CRS D5 FU D6 - D7 OWC Transmit Collided: Indicates that the transmission collided at least once with another station on the network. The number of collisions is recorded in the Number of Collisions Registers. (NCR). Transmit Aborted: Indicates the TC5299J aborted transmission because of excessive collisions. (Total number of transmissions including original transmission attempt equals 16). Carrier Sense Lost: This bit is set when carrier is lost during transmission of the packet. Carrier Sense is monitored from the end of Preamble/Synch until TXE is dropped. Transmission is not aborted on loss of carrier. FIFO Underrun: If the TC5299J cannot gain access of the bus before the FIFO empties, this bit is set. Transmission of the packet will be aborted. Reserved Out of Window Collision: Indicates that a collision occurred after a slot time. Transmissions rescheduled as in normal collisions. -20- Ver. 0.1 07/04/01 TC5299J 5.7.5 Receive Configuration Register (RCR) 0CH(Write) This register determines operation of the TC5299J during reception of a packet and is used to program what types of packets to accept. 7 6 5 4 3 2 1 0 - - MON PRO AM AB AR SEP Bit Symbol Description D0 SEP D1 AR D2 AB D3 AM D4 PRO D5 MON D6 - Save Errored Packets 0: Packets with receive errors are rejected. 1: Packets with receive errors are accepted. Receive errors are CRC and Frame Alignment errors. Accept Runt Packets 0: Packets with fewer than 64 bytes rejected. 1: Packets with fewer than 64 bytes accepted. Accept Broadcast 0: Packets with all 1's broadcast destination address rejected. 1: Packets with all 1's broadcast destination address accepted. Accept Multicast 0: Packets with multicast destination address not checked. 1: Packets with multicast destination address checked. Promiscuous Physical 0: Physical address of node must match the station address programmed in PAR0-PAR5. (Physical address checked) 1: All packets with any physical address accepted. (physical address not checked) Monitor Mode: Enables the receiver to check addresses and CRC on incoming packets without buffering to memory. The missed packet Tally counter will be incremented for each recognized packet. 0: Packets buffered to memory. 1: Packets checked for address match, good CRC and frame Alignment but not buffered to memory. Reserved D7 - Reserved Note: D2 and D3 are ”OR'd” together, i. e., if D2 and D3 are set the TC5299J will accept broadcast and multicast addresses as well as its own physical address. To establish full promiscuous mode, bits D2, D3 and D4 should be set. In addition the multicast hashing array must be set to all 1's in order to accept all multicast addresses. 5.7.6 Receive Status Register (RSR) 0CH(Read) This register records status of the received packet, including information on errors and the type of address match, either physical or multicast. The contents of this register are written to buffer memory by the DMA after reception of a good packet. If packets with errors are to be saved the receive status is written to memory at the head of the erroneous packet if an erroneous packet is received. If packets with errors are to be rejected the RSR will not be written to memory. The contents will be cleared when the next packet arrives. CRC errors, frame Alignment errors and missed packets are counted internally by the TC5299J which relinquishes the Host from reading the RSR in real time to record errors for Network Management functions. The contents of this register are not specified until after the first reception. 7 6 5 4 3 -21- 2 1 0 Ver. 0.1 07/04/01 TC5299J DFR DIS PHY MPA FO FAE CRC PRX Bit Symbol Description D0 PRX D1 CRC D2 FAE D3 FO D4 MPA D5 PHY D6 DIS D7 DFR Packet Received Intact: Indicates packet received without error. (Bits CRC, FAE, FO and MPA are zero for the received packet.) CRC Error: Indicates packet received with CRC error. Increments Tally Counter (CNTR1). This bit will also be set for Frame Alignment errors. Frame Alignment Error: Indicates that the incoming packet did not end on a byte boundary and the CRC did not match at last byte boundary. Increments Tally counter (CNTR0). FIFO Overrun: This bit is set when the FIFO is not serviced causing overflow during reception. Reception of the packet will be aborted. Missed Packet: Set when packet intended for node cannot be accepted by TC5299J because of a lack of receive buffers of if the controller is in monitor mode and did not buffer the packet to memory. Increments Tally Counter (CNTR2). Physical/Multicast Address: Indicates whether received packet had a physical or multicast address type 0: Physical Address Match 1: Multicast/Broadcast Address Match Receiver Disabled: Set when receiver disabled by entering Monitor mode. Reset when receiver is re-enabled when exiting Monitor mode. Deferring: Set when CRS or COL inputs are active. If the transceiver has asserted the CD line as a result of the jabber, this bit will stay set indicating the jabber condition. Note: Following coding applies to CRC and FAE bits FAE CRC Type of Error 0 0 1 1 0 1 0 1 5.7.7 No error (Good CRC and <6 Dribble Bits) CRC ERROR Legal, will not occur Frame Alignment Error and CRC Error Interrupt Mask Register (IMR) 0FH(Write) The interrupt Mask Register is used to mask interrupts. Each interrupt mask bit corresponds to a bit in the Interrupt Status Register (ISR). If an interrupt mask bit is set, an interrupt will be issued whenever the corresponding bit in the ISR is set. If any bit in the IMR is set low, an interrupt will not occur when the bit in the ISR is set. The IMR powers up all zeroes. 7 6 5 4 3 2 1 0 - RDCE CNTE OVWE TXEE RXEE PTXE PRXE Bit Symbol Description D0 PRXE Packet Received Interrupt Enable: Enables Interrupt when packet received. D1 PTXE Packet Transmitted Interrupt Enable: Enables Interrupt when packet is transmitted. D2 RXEE Receive Error Interrupt Enable: Enables Interrupt when packet received with error. D3 TXEE D4 OVWE D5 CNTE Transmit Error Interrupt Enable: Enables Interrupt when packet transmission results in error. Over Write Warning Interrupt Enable: Enables Interrupt when Buffer management Logic lacks sufficient buffers to store incoming packet. Counter Overflow Interrupt Enable: Enables Interrupt when MSB of one or more f h N k T ll h b -22- Ver. 0.1 07/04/01 TC5299J Bit Symbol Description of the Network Tally counters has been set. D6 RDCE D7 - 5.7.8 DMA Complete Interrupt Enable: Enables Interrupt when Remote DMA transfer has been completed. Reserved Interrupt Status Register (ISR) 07H(Read/Write) This register is accessed to determine the cause of an interrupt. Any interrupt can be masked in the interrupt Mask Register (IMR). Individual interrupt bits are cleared by writing a ”1” into the corresponding bit of the ISR. The IRQ signal is active as long as any unmasked signal is set, and will not go low until all unmarked bits in this register have been cleared. The ISR must be cleared after power up by writing it with all 1's. 5.8 7 6 5 4 3 2 1 0 RST RDC CNT OVW TXE RXE PTX PRX Bit Symbol Description D0 PRX Packet Received: Indicates packet received with no errors. D1 PTX Packet Transmitted: Indicates packet transmitted with no errors. D2 RXE D3 TXE D4 OVW D5 CNT D6 RDC Receive Error: Indicates that a packet was received with one or more of the following errors: - CRC Error - Frame Alignment Error - FIFO Overrun - Missed Packet Transmit Error: Set when packet transmitted with one or more of the following errors: - Excessive Collisions - FIFO Underrun Over Write Warning: Set when receive buffer ring storage resources have been exhausted. (Local DMA has reached Boundary Pointer). Counter Over flow: Set when MSB of one or more of the Network Tally Counters has been set. Remote DMA Complete: Set when Remote DMA operation has been completed. D7 RST Reset Status: A status indicator with no interrupt generated - Set when TC5299J enters reset state and is cleared when a start command is issued - Set when a Receive Buffer Ring overflows and is cleared when leaves overflow status. Writing to this bit has no effect and powers up high. Network Tally Counter Registers (CNTR) Three 8-bit counters are provided for monitoring the number of CRC errors, Frame Alignment Errors and missed packets, The maximum count reached by any counter is 192 (C0H). These registers will be cleared when read by the CPU. The count is recorded in binary in CT0-CT7 of each Tally Register. CNTR0: Monitor the number of Frame Alignment error 7 6 5 4 CT7 CT6 CT5 CT4 3 2 1 0 CT3 CT2 CT1 CT0 CNTR1: Monitor the number of CRC error -23- Ver. 0.1 07/04/01 TC5299J 7 6 5 4 3 2 1 0 CT7 CT6 CT5 CT4 CT3 CT2 CT1 CT0 4 3 2 1 0 CT4 CT3 CT2 CT1 CT0 CNTR2: Monitor the number of Missed Packets 7 6 5 CT7 5.9 CT6 CT5 Number of Collisions Register (NCR) This register contains the number of collisions a node experiences when attempting to transmit a packet. If no collisions are experienced during a transmission attempt, the COL bit of the TSR will not be set and the contents of NCR will be zero. If there are excessive collisions, the ABT bit in the TSR will be set and the contents of NCR will be zero. The NCR is cleared after the TXP bit in the CR is set. 7 6 5 4 3 2 1 0 - - - - NC3 NC2 NC1 NC0 5.10 Physical Address Register (PAR0-PAR5) The physical address registers are used to compare the destination address of incoming packets for rejecting or accepting packets. Comparisons are performed on a byte-wide basis. The bit assignment shown below relates the sequence in PAR0-PAR5 to the bit sequence of the received packet. .. Syn Syn DA0 DA1 DA2 |------- PAR0 PAR1 PAR2 PAR3 PAR4 PAR5 D7 DA7 DA15 DA23 DA31 DA39 DA47 DA3 DA4 DA5 DA6 DA7 Destination Address D6 DA6 DA14 DA22 DA30 DA38 DA46 D5 DA5 DA13 DA21 DA29 DA37 DA45 D4 DA4 DA12 DA20 DA28 DA36 DA44 D3 DA3 DA11 DA19 DA27 DA35 DA43 .. --------|--- Source D2 DA2 DA10 DA18 DA26 DA34 DA42 D1 DA1 DA9 DA17 DA25 DA33 DA41 D0 DA0 DA8 DA16 DA24 DA32 DA40 5.11 Multicast Address Registers (MAR0-MAR7) The Multicast address registers provide filtering of multicast addresses hashed by the CRC logic. All destination addresses are fed through the CRC logic and as the last bit of the destination address enters the CRC, the 6 most significant bits of the CRC generator are latched. These 6 bits are then decoded by a 1 of 64 decode to index a unique filter bit (FB0-63) in the multicast address register. If the filter bit selected is set, the multicast packet is accepted. The system designer would use a program to determine which filter bits to set in the multicast registers. For some address found to hash to the value 50 (32H), then FB50 in MAR6 should be initialized to ”1” All multicast filter bits that correspond to multicast address accepted by the node are then set to one. To accept all multicast packets all of the registers are set to all ones. D7 D6 D5 D4 D3 D2 D1 D0 MAR0 FB7 FB6 FB5 FB4 FB3 FB2 FB1 FB0 MAR1 FB15 FB14 FB13 FB12 FB11 FB10 FB9 FB8 MAR2 FB23 FB22 FB21 FB20 FB19 FB18 FB17 FB16 MAR3 FB31 FB30 FB29 FB28 FB27 FB26 FB25 FB24 -24- Ver. 0.1 07/04/01 TC5299J MAR4 FB39 FB38 FB37 FB36 FB35 FB34 FB33 FB32 MAR5 FB47 FB46 FB45 FB44 FB43 FB42 FB41 FB40 MAR6 FB55 FB54 FB53 FB52 FB51 FB50 FB49 FB48 MAR7 FB63 FB62 FB61 FB60 FB59 FB58 FB57 FB56 5.12 DMA Registers LOCAL DMA TRANSMIT REGISTERS 15 8| 7 (TPSR) 0 TRANSMIT PAGE START TRANSMIT BYTE COUNT (TBCR0,1) 5.13 LOCAL DMA RECEIVE REGISTERS 15 8| 7 (PSTART) PAGE START (PSTOP) PAGE STOP (CURR) CURRENT (BRNY) BOUNDARY 15 (CLDA0,1) 8| 7 0 0 CURRENT LOCAL DMA ADDRESS 5.14 REMOTE DMA REGISTERS 15 8| 7 0 (RSAR0,1) START ADDRESS (RBCR0,1) BYTE COUNT (CRDA0,1) CURRENT REMOTE DMA ADDRESS 5.15 (i) Local DMA Transmit Registers Transmit page start register (TPSR): This register points to the assembled packet to be transmitted. Only the eight higher order addresses be specified since all transmit packets are assembled on 256-byte page boundaries. 7 6 5 4 3 2 1 0 A15 A14 A13 A12 A11 A10 A9 A8 Transmit byte count register0, 1 (TBCR0, TBCR1): These two registers indicate the length of the packet to be transmitted in bytes. The maximum number of transmit bytes allowed is 32k bytes. (4000H – 7FFFH) The TC5299J will not truncate transmissions longer than 1500 bytes. TBCR1 7 L15 6 L14 5 L13 4 L12 3 L11 2 L10 1 L9 -25- 0 L8 Ver. 0.1 07/04/01 TC5299J TBCR0 7 L7 6 L6 5 L5 4 L4 3 L3 2 L2 1 L1 0 L0 5.16 (ii) Local DMA Receive Registers Page start, stop registers (PSTART, STOP): The Page Start and Page stop Registers program the starting and stopping page of the Receive Buffer Ring. Since the TC5299J uses fixed 256-byte buffers aligned on page boundaries only the upper eight bits of the start and stop address are specified. PSTART PSTOP 7 6 5 4 3 2 1 0 A15 A14 A13 A12 A11 A10 A9 A8 Boundary register (BNRY): This register is used to prevent overflow of the Receive Buffer Ring. Buffer management compares the contents of this register to the next buffer address when linking buffers together. If the contents of this register match the next buffer address the local DMA operation is aborted. BNRY 7 6 5 4 3 2 1 0 A15 A14 A13 A12 A11 A10 A9 A8 5.17 (iii) Remote DMA registers Remote Start Address Registers (RSAR0, 1): Remote Byte Count Registers (RBCR0, 1): Remote DMA operations are programmed via the Remote Start Address (RSAR0, 1) and Remote Byte Count (RBCR0, 1) registers. The Remote Start Address is used to point to the start of the block of data to be transferred and the Remote Byte Count is used to indicate the length of the block (in bytes). RSAR1 RSAR0 RBCR1 RBCR0 7 6 5 4 3 2 1 0 A15 A14 A13 A12 A11 A10 A9 A8 7 6 5 4 3 2 1 0 A7 A6 A5 A4 A3 A2 A1 A0 7 6 5 4 3 2 1 0 BC15 BC14 BC13 BC12 BC11 BC10 BC9 BC8 7 6 5 4 3 2 1 0 BC7 BC6 BC5 BC4 BC3 BC2 BC1 BC0 Current Page Register: This register is used internally by the Buffer Management Logic as a backup register for reception. CURR contains the address of the first buffer to be used for a packet reception and is used to restore DMA pointers in the event of receive errors. This register is initialized to the same value as PSTART and should not be written to again unless the controller is reset. 7 6 5 4 3 2 1 0 CURR A15 A14 A13 A12 A11 A10 A9 -26- A8 Ver. 0.1 07/04/01 TC5299J Current local DMA register 0,1 (CLDA0, 1): These two registers can be accessed to determine the current Local DMA Address. CLDA1 CLDA0 7 6 5 4 3 2 1 0 A15 A14 A13 A12 A11 A10 A9 A8 7 6 5 4 3 2 1 0 A7 A6 A5 A4 A3 A2 A1 A0 Current Remote DMA Address Registers: The Current Remote DMA Registers contain the current address of the Remote DMA. The bit assignment is shown as below: CRDA1 CRDA0 7 6 5 4 3 2 1 0 A15 A14 A13 A12 A11 A10 A9 A8 7 6 5 4 3 2 1 0 A7 A6 A5 A4 A3 A2 A1 A0 -27- Ver. 0.1 07/04/01 TC5299J 6 Electrical Specification and Timing MII : RECEIVE TIMING An example transfer a packet from PHY to MAC RXC RXDV RXD[3:0] Receive Data RXER TRANSMIT TIMINGS An example transfer a packet from MAC to PHY TXC TXEN TXD[3:0] Transm it Data CRS COL -28- Ver. 0.1 07/04/01 TC5299J ISA Slave Accesses ISA Slave Accesses T16 T6c ALE T1 T15 T18 T19 AEN T2 T6a SA0-9 T7 T13 IOR*,IOW* T14 IO16* T5a T5c IORDY T3 T17 T4 T10 SD0-15 (Read) T20 T11 SD0-15 (Write) T9 Data Valid T12 MR* T21 MW * T22 -29- Ver. 0.1 07/04/01 TC5299J Symbol 8-Bit Transfers Min Max Description 16-Bit Transfers Min Max Units T1 T2 T3 ALE Width (ISA Interface) AEN valid before Command Strobe Active SA0-9 Valid before IOR* , IOW* Asserted 20 60 40 20 60 20 ns ns ns T4 T5a IOR*, Asserted to SD0-15 Driven SA0-9 Valid before IO16* Valid 0 0 60 ns ns T5c 50 ns T6a T6c SA0-9 Valid and IOR* or IOW* Active before IO16* Valid IOR*, IOW* Asserted to IORDY Deasserted ALE Asserted and SA0-9 Valid to IORDY Deasserted 50 60 ns ns T7 T9 IOR*, IOW* Deasserted before SA0-9 Invalid IOR*, Deasserted to SD0-15 Read Data Invalid T10 IOR*, Deasserted to SD0-15 Floating T11 T12 SD0-15 Write Data Valid to IOW* Deasserted IOW*, Deasserted to SD0-15 Write Data Invalid 60 20 20 20 ns ns T13 T14 IOR*, IOW* Active Width IOR*, IOW* Inactive Width 300 85 140 85 ns ns T15 T16 ALE Asserted before IOR*, IOW* Asserted IOR*, IOW* Negated before Next ALE Asserted 25 20 ns ns T17 IORDY Asserted to SD0-15 I/O Read Data Valid T18 T19 IOR*, IOW* Deasserted before AEN Invalid AEN Valid before ALE Deasserted T20 T21 IOR* Asserted to SD0-15 Read Data Valid IORDY Invalid after MR* Deasserted T22 IORDY Invalid after MW* Deasserted 100 60 15 0 15 0 45 60 25 50 150 -30- 45 60 25 50 ns ns ns ns ns ns 90 30 ns ns 20 ns Ver. 0.1 07/04/01 TC5299J 7 Physical Dimension D 1 D1 2 θ2 4 θ1 65 96 97 R1 64 B R2 E1 E 2 1 GAGE PLANE .25 S θ3 128 PIN 1 IDENTIFIER θ B L L1 33 DETAIL "A" 1 32 e b "A" A A2 -CWITH PLATING 6 A1 0.08 C b 5 3 PACKAGE LQFP 128 c c1 5 5 BASE METAL b1 5 SECTION B-B Dimension in mm Symbol Dimension in inch Min Nom Max Min Nom Max A ------ ------ 1.60 ------ ------ 0.063 A1 0.05 ------ ------ 0.002 ------ ------ A2 1.35 1.40 1.45 0.053 0.055 0.057 b 0.13 0.18 0.23 0.005 0.007 0.009 b1 0.13 0.16 0.19 0.005 0.006 0.007 c 0.09 ------ 0.20 0.004 ------ 0.008 c1 0.09 ------ 0.16 0.004 ------ 0.006 D 15.85 16.00 16.15 0.624 0.630 0.636 D1 13.90 14.00 14.10 0.547 0.551 0.555 E 15.85 16.00 16.15 0.624 0.630 0.636 E1 13.90 14.00 14.10 0.547 0.551 0.555 e L 0.40 BSC 0.45 L1 0.60 0.016 BSC 0.75 0.018 1.00 REF 0.024 0.030 0.039 REF R1 0.08 ------ ------ 0.003 ------ ------ R2 0.08 ------ 0.20 0.003 ------ 0.008 S 0.20 ------ ------ θ 0° 3 .5 ° θ1 0° ------ 0.008 ------ 7° 0° 3 .5 ° ------ 0° ------ θ2 12 ° TYP 12 ° TYP θ3 12 ° TYP 12 ° TYP -31- ----- 7° ------ Ver. 0.1 07/04/01 TC5299J Notice This document contains information on product, which is in the development phase. TMI reserves the rights to change specifications, features, functions and availability of the product without notice. TMI devices are NOT designed, intended, authorized, or warranted to be suitable for use in Life-Supporting applications. -32- Ver. 0.1 07/04/01