Reference Manual

PMAC 2 Software Reference
PMAC I/0 and Memory Map 455
(Y:$FFE5)
6 Reserved Control (do not use)
7 Reserved Control (do not use)
Note:
* All the I/O lines marked with an asterisk in the above table are used by PMAC’s
firmware for special functions. These lines should not be used for general-purpose
I/O.
PMAC2 Option 12/12A Analog-to-Digital Converters
Y:$FFC0
Option 12 Analog-to-Digital Converters (low 12 bits)
Write operation: channel select (Channels 0-7) and
mode; Read operation: converted value of selected
channel.
Option 12A Analog-to-Digital Converters (high 12 bits)
Write operation: channel select (Channels 8-15) and
mode; Read operation: converted value of selected
channel.
PMAC(1)-PCI, PMAC(1)-PCI Lite Option 12/12A Analog-to-Digital
Converters
Y:$FFC8
Option 12 Analog-to-Digital Converters (low 12 bits)
Write operation: channel select (Channels 0-7) and
mode; Read operation: converted value of selected
channel.
Option 12A Analog-to-Digital Converters (high 12 bits)
Write operation: channel select (Channels 8-15) and
mode; Read operation: converted value of selected
channel.
Expansion Port (JEXP) I/O
Y:$FFD0 (65488)
1st Accessory-14 Port A
Y:$FFD1 (65489)
1st Accessory-14 Port B
Y:$FFD2 (65490)
1st Accessory-14 Multimodule
Y:$FFD3 (65491)
1st Accessory-14 Control Word
Y:$FFD8 (65496)
2nd Accessory-14 Port A
Y:$FFD9 (65497)
2nd Accessory-14 Port B
Y:$FFDA (65498)
2nd Accessory-14 Multimodule
Y:$FFDB (65499)
2nd Accessory-14 Control Word
Y:$FFE0 (65504)
3rd Accessory-14 Port A
Y:$FFE1 (65505)
3rd Accessory-14 Port B
Y:$FFE2 (65506)
3rd Accessory-14 Multimodule
Y:$FFE3 (65507)
3rd Accessory-14 Control Word
Y:$FFE8 (65512)
4th Accessory-14 Port A
Y:$FFE9 (65513)
4th Accessory-14 Port B
Y:$FFEA (65514)
4th Accessory-14 Multimodule
Y:$FFEB (65515)
4th Accessory-14 Control Word
Y:$FFF0 (65520)
5th Accessory-14 Port A
Y:$FFF1 (65521)
5th Accessory-14 Port B
Y:$FFF2 (65522)
5th Accessory-14 Multimodule
Y:$FFF3 (65523)
5th Accessory-14 Control Word
Y:$FFF8 (65528)
6th Accessory-14 Port A