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MX98715A Datasheet(PDF) 4 Page - Macronix International |
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MX98715A Datasheet(HTML) 4 Page - Macronix International |
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4 / 32 page  4 P/N:PM0537 REV. 1.2, FEB. 24, 1999 MX98715A Pin Name Type Pin No 128 Pin Function and Driver PAR T/S 24 PCI bus parity bit: shared PCI bus even parity bit for 32 bits AD bus and CBE bus. STOPB S/T/S 20 PCI Target requested transfer stop signal: as bus master, assertion of STOPB cause MX98715A either to retry, disconnect, or abort. REQB T/S 115 PCI bus request signal: to initiate a bus master cycle request GNTB I 114 PCI bus grant acknowledge signal: host asserts to inform MX98715A that access to the bus is granted BPA1 O 61 Boot PROM address bit 1(EECS=0): together with BPA[15:0] to access (EEDI) external boot PROM up to 256KB. EEPROM data in(EECS=1): EEPROM serial data input pin. BPA0 O 60 Boot PROM address bit 0(EECS=0): together with BPA[15:0] to access (EECK) external boot PROM up to 256KB. EEPROM clock(EECS=1): EEPROM clock input pin BPA[15:0] O 78-76, 73-70, Boot PROM address line. 68-60 BPD0 T/S 58 Boot PROM data line 0(EECS=0): boot PROM or flash data line 0. (EEDO) EEPROM data out(EECS=1): EEPROM serial data outpin(during reset initialization). BPD[7:0] T/S 51-58 Boot PROM data lines: boot PROM or flash data lines 7-0. EECS O 59 EEPROM Chip Select pin. BOEB O 69 Boot PROM Output Enable. RDA O 83 Connecting an external resistor to ground, Resistor value=510 ohms RTX O 102 Connecting an external resistor to ground, Resistor value=510 ohms RTX2EQ O 101 No connection. NC I 100 No Connection. RXIP I 92 Twisted pair receive differential input: Support both 10 Base-T and 100 Base-TX receive differential input. RXIN I 91 Twisted pair receive differential input: Support both 10 Base-T and 100 Base-TX receive differential input TXOP O 98 Twisted pair transmit differential output: Support both 10 Base-T and 100 Base-TX transmit differential output TXON O 97 Twisted pair transmit differential output: Support both 10 Base-T and 100 Base-TX transmit differential output CKREF I 85 Reference clock: 25MHz oscillator clock input LED0 O 79 Programmable LED pin 0: CSR9.28=1 Set the LED as Link Speed (10/100) LED. CSR9.28=0 Set the LED as Activity LED. Default is activity LED after reset. |
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