2 i/o address map – ADLINK PCI-7224 User Manual
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• Registers Format
3.2 I/O
Address
Map
All the 724X registers are 8 bits. The users can access these registers only
by 8 bits I/O instructions. The following table shows the registers map,
including descriptions and their offset addresses relative to the base address.
Please refer to chapter 4 of this manual for a more detailed description on the
operation of different registers.
Offset
Write
Read
Boards
0x00 P1A
P1A
PCI-7224
0x01 P1B
P1B
PCI-7248
0x02 P1C
P1C
PCI-7296
0x03
P1Ctrl
Not used
cPCI-7248/49R
0x04 P2A
P2A
PCI-7248
0x05 P2B
P2B
PCI-7296
0x06 P2C
P2C
cPCI-7248/49R
0x07
P2Ctrl
Not used
0x08 P3A
P3A
P1AE
(1)
PCI-7296
0x09 P3B
P3B
P1BE
(1)
0x0A P3C
P3C
P1CE
(1)
(1)
for
0x0B
P3Ctrl
Not used
Not used
cPCI-7249R
0x0C P4A
P4A
P2AE
(1)
Only
0x0D P4B
P4B
P2BE
(1)
0x0E P4C
P4C
P2CE
(1)
0x0F
P4Ctrl
Not used
Not used
0x10 Timer/Counter
#0 Timer/Counter #0
PCI-7224
0x11 Timer/Counter
#1 Timer/Counter #1
PCI-7248
0x12 Timer/Counter
#2 Timer/Counter #2
PCI-7296
0x13
Timer/Counter
Mode Control
Timer/Counter
Mode Status
cPCI-7248/49R
0x20
ISC: Interrupt
Source Control
Not used
0x30
Clear Interrupt
Not used