Technical Information 1-9
Table 1-3 I/O Address Map
Address (Hex)
I/O Device Name
03BC-03BF
Parallel port x
03E8-03EF
Serial port 3
03F0-03F5
Floppy channel 1
03F6
Primary IDE channel command port
03F7 (write)
Floppy channel 1 command
03F7, bit 7
Floppy disk change channel 1
03F7, bit 6 through 0
Primary IDE channel status port
03F8-03FF
On-board serial port 1
LPT + 400h
ECP port, LPT + 400h
0CF8-0CFB*
PCI configuration address register
0CFC-0CFF*
PCI configuration data register
FF00-FF07
IDE bus master register
* Accessible only by DWORD accesses.
System Memory
All configurations ship with 16 MB of memory: 640 KB of base memory and 15 MB of
extended memory. System memory can be expanded up to 128 MB, using optional single
in-line memory modules (SIMMs) installed in SIMM sockets on the system board.
The memory configuration consists of two banks (bank 0 and bank 1) with two sockets
each. The SIMM memory sockets accept 32-bit (non-parity) 4-, 8-, 16-, or 32-MB 70 ns
Fast Page Mode (FPM) or 60 ns Extended Data Out (EDO) SIMMs.
NOTE:
36-bit SIMMs may be used, but parity
bits are ignored.
The four SIMM sockets are integrated on the system board. Systems ship with two 2-MB x
32 FPM SIMMs (16 MB total) installed in two sockets.
Single or double-sided SIMMs must be added in pairs. SIMM banks can be populated in
either order. EDO and FPM SIMMs can be mixed in separate banks.
The SIMMs are 1 MB x 32 bit (4 MB), 2 MB x 32 bit (8 MB), 4 MB x 32 bit (16 MB), and
8 MB x 32 bit (32 MB). When the standard SIMMs are removed, four 32-MB SIMMs may
be installed for a total of 128 MB.
Summary of Contents for POWERMATE P - SERVICE MANUAL 1995
Page 37: ...1 22 Technical Information ...
Page 169: ...Index 5 ...
