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Chapter 2
Specification Summary
2-7
2.1.11
Serial Port Interface
Interface Connector
DB25P Male, wired for TTY-A and TTY-B,
see A.3.10 on page A-22 for PinOut
Need “Y” splitter cable to use TTY-B
Mode of operation
Async @ 460.8 KBps max, Sync @ 384 Kbps max
HandShake signals
CTS, RTS, DTR, DSR, fully supported, optional
Interface Voltage
RS423 levels: J1804 = 2 & 3, J1806 = 2 & 3
RS232 levels: J1804 = 1 & 2, J1806 = 1 & 2
Slew Rate control
Normal speed <100Kbps, 5V/
µ
S J1805 = 2 & 3
High speed >100Kbps, 10V/
µ
S J1805 = 1 & 2
Baud Rate
Programmable: 300...460800 asynchronous mode
Parity Bit
Programmable: Odd Parity, Even Parity, No Parity
Stop Bits
Programmable: 1, 2
Interconnect cable
Standard cable up to 30 Meters long
Synchronous Mode and HiSpeed need special attention
Standard IO default
At boot time if video or keyboard is absent, OBP and OS
default console communications to TTY-A
OBP default initialize
TTY-A: 9600N1; TTY-B: 9600N1
2.1.12
Floppy Disk Drive Interface
Interface connector
34 Pin Dual Row, J1902, see A.3.9 on page A-21
Interface cable
34 pin Flat Ribbon Cable, 13 inches or less
1:1 connection, 1 connector on each end
Device supported
3.5 inch Floppy Drive, 1 Drive only, DS0 or DS1 auto
search. Manual Eject only
Data transfer rate
500Kbps @ 1.44MB High Density ReadWrite operation
250Kbps @ 720KB double Density ReadWrite operation
Media, format supported
1.44MB Unix format only
1.44MB, 720KB DOS format
Boot support
Booting from floppy disk is not supported
Содержание SPARCengine Ultra AXi
Страница 8: ...viii SPARCengine Ultra AXi OEM Technical Manual May 1999...
Страница 16: ...xvi Contents...
Страница 19: ...Figures xix FIGURE D 2 Ultra AXi CPU PROM Content Layout D 4 FIGURE D 3 Ultra AXi NVRAM Content Layout D 5...
Страница 20: ...xx Figures...
Страница 26: ...1 4 SPARCengine Ultra AXi OEM Technical Manual May 1999 FIGURE 1 2 SPARCengine Ultra AXi Motherboard...
Страница 32: ...1 10 SPARCengine Ultra AXi OEM Technical Manual May 1999...
Страница 48: ...2 16 SPARCengine Ultra AXi OEM Technical Manual May 1999...
Страница 62: ...3 14 SPARCengine Ultra AXi OEM Technical Manual May 1999...
Страница 94: ...A 28 SPARCengine Ultra AXi OEM Technical Manual May 1999...
Страница 105: ...Appendix B Mechanical Drawings B 11 FIGURE B 12 UltraSPARC IIi Pin Fin Heatsink Module 270 MHz...
Страница 164: ...E 12 SPARCengine Ultra AXi OEM Technical Manual May 1999...
Страница 174: ...Index 4...