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Turbo PMAC/PMAC2 Software Reference

Turbo PMAC Global I-Variables 91

It can also be used for registers in the 3U-format Acc-3E1 (for 3U Turbo Stack systems) and Acc-14E

(for UMAC Turbo systems) boards. In this case, the last hex digit of Ixx95 must be set to a non-zero

value to specify the byte-wide bus of these boards. The following tables show Ixx10 values for these

boards.

Ixx10 Values for Acc-3E1 Registers in 3U Turbo Stack Systems

(Ixx95=$08000x to $30000x [unsigned], $88000x to $B0000x [signed])

Acc-3E1 Address Jumper

Ixx10 Value

$07880x

$07890x

$078A0x

$078B0x

Ixx10 Values for Acc-14E Registers in UMAC Turbo Systems

(Ixx95=$08000x to $30000x [unsigned], $88000x to $B0000x [signed])

DIP-Switch

Setting

SW1-1 ON (0)

SW1-2 ON (0)

SW1-1 OFF (1)

SW1-2 ON (0)

SW1-1 ON (0)

SW1-2 OFF (1)

SW1-1 OFF (1)

SW1-2 OFF (1)

SW1-3 ON (0)

SW1-4 ON (0)

$078C0x

$078D0x

$078E0x

$078F0x

SW1-3 OFF (1)

SW1-4 ON (0)

$079C0x

$079D0x

$079E0x

$079F0x

SW1-3 ON (0)

SW1-4 OFF (1)

$07AC0x

$07AD0x

$07AE0x

$07AF0x

SW1-3 OFF (1)

SW1-4 OFF (1)

$07BC0x

$07BD0x

$07BE0x

$07BF0x

SW1-5 & 6 must be ON (0). ON means CLOSED; OFF means OPEN.

The final digit, represented by an x in both of these tables, can take a value of 0 to 5, depending on which

I/O point on the board is used for the least significant bit (LSB):

Ixx10 Last Hex

Digit x

Pin Used for LSB

x=0

I/O00-07

I/O48-55

I/O96-103

x=1

I/O08-15

I/O56-63

I/O104-111

x=2

I/O16-23

I/O64-71

I/O112-119

x=3

I/O24-31

I/O72-79

I/O120-127

x=4

I/O32-39

I/O80-87

I/O128-135

x=5

I/O40-47

I/O88-95

I/O136-143

Acc-28 A/D Converter Read: If Ixx95 is set to $310000 or $B10000, the address specified by Ixx10 is a

Turbo PMAC ‘Y’ memory-I/O address, and Turbo PMAC will read the data in the high 16 bits of that

address as the absolute position (the LSB – one count – is in bit 8). This format is intended for the Acc-

28A and Acc-28B A/D converters.

The following table shows the settings of Ixx10 for these registers.

Ixx10 Values for PMAC-Style ADC Registers

(Ixx95=$B10000 for Acc-28A, Ixx95=$310000 for Acc-28B)

PMAC

First

Acc-24P/V

Second

Acc-24P/V

Third

Acc-24P/V

Fourth

Acc-24P/V

ADC1

$078006

$078206

$079206

$07A206

$07B206

ADC2

$078007

$078207

$079207

$07A207

$07B207

ADC3

$07800E

$07820E

$07920E

$07A20E

$07B20E

ADC4

$07800F

$07820F

$07920F

$07A20F

$07B20F

ADC5

$078106

$078306

$079306

$07A306

$07B306

ADC6

$078107

$078307

$079307

$07A307

$07B307

ADC7

$07810E

$07830E

$07930E

$07A30E

$07B30E

ADC8

$07810F

$07830F

$07930F

$07A30F

$07B30F