Model 466-1 Adapter
52 CSR Accessed From The SBus
As the page size increases, more address bits from the SBus are passed to the
VMEbus and fewer low order Page Register bits (16 - 19) are used.
Page Register
Page Register
Page Register
Page Register
Page Register
Window
Window
Window
Window
Window
31
16 15
0
17 16
18 17
19 18
20 19
0
ADDRESS
0 0 0 0
0 0 0 1
0 0 1 1
0 1 1 1
1 1 1 1
3
0
PAGE SIZE
For any page size used, the Dual Port and remote RAM windows must
start at an address that is an even multiple, starting from zero, of the
selected page window size. For example, for a 64K byte window size, an
offset XXX 0000
hex
should be used in the mmap() routine.
6.2.2 Remote Command Register 1
Remote Command Register 1 is a byte-wide, write-only register located on the
VMEbus adapter card. It is accessed in Node I/O space with address 020
0009
hex
.
The SPARCstation can write to Remote Command Register 1 to configure it
for various operating modes or to control the card.
Содержание 466-1
Страница 1: ...Model 466 1 Adapter Hardware Manual Connects a SBus Computer to a VMEbus System...
Страница 2: ...Model 466 1 Adapter ii...
Страница 24: ...Model 466 1 Adapter 14 Adapter Functions...
Страница 52: ...Model 466 1 Adapter 42 VMEbus Adapter Card Configuration...
Страница 70: ...Model 466 1 Adapter 60 CSR Accessed From The SBus...
Страница 88: ...Model 466 1 Adapter 78 Common Problems And Solutions...
Страница 106: ...Model 466 1 Adapter 96 Jumper Configuration Worksheets...
Страница 107: ...Model 466 1 Adapter Jumper Configuration Worksheets 97 D 1 SBus Adapter Card Worksheet J1...
Страница 108: ...Model 466 1 Adapter 98 Jumper Configuration Worksheets...
Страница 110: ...Model 466 1 Adapter 100 Jumper Configuration Worksheets...