SERIES I/O SERVER MODULE
MIL-STD-1553A/B Bus Interface Module
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Acromag, Inc. Tel:248-295-0310 Fax:248-624-9234 Email:[email protected]
www.acromag.com
Table 4 IOS-57x ID ROM
Hex
Offset
From ID
PROM
Base
Address
ASCII
Character
Equivalent
Numeric
Value
(Hex)
Field Description
00
I
49
Format I ID ROM supports 8 or 32 MHz IOS
bus clock frequency
02
P
50
04
A
41
06
H
48
08
A3
Acromag ID Code
0A
IOS Model Code
1
52
IOS-571
53
IOS-572
0C
00
Not Used (Revision)
0E
00
Reserved
10
00
Not Used (Driver ID Low Byte)
12
00
Not Used (Driver ID High Byte)
14
0C
Total Number of ID PROM Bytes
16
CRC
8F
IOS-571
EE
IOS-572
18 to 3E
yy
Not Used
Note (Table 4):
1. The model number is represented by a two-digit code within the ID space (the
IOS-571 model is represented by 52H, the IOS-572 is represented by 53H).
ADDRESS MAP
Table 5 IOS-57x Address Map
Description
IOS Address
Space
Access Type
Address Offset from
base
Control Register
I/O
16 bit only
0
Status Register
I/O
16 bit only
2
Channel 0 Interrupt Vector I/O
8 bit
4
Channel 1 Interrupt Vector I/O
8 bit
6
ID ROM
ID
8 bit
0x00
– 0x16
Channel 0 uACE registers
Memory
16 bit only
0x00000
– 0x0003E
Channel 0 uACE RAM
Memory
16 bit only
0x20000
– 0x3FFFE
Channel 1 uACE registers
Memory
16 bit only
0x40000
– 0x4003E
Channel 1 uACE RAM
Memory
16 bit only
0x60000
– 0x7FFFE
I/O SPACE ADDRESS MAP
I/O address space is used to provide access to control registers, a status register, and
interrupt vector registers.