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Programmer’s Reference
4-16
Copyright © ARM Limited 2000. All rights reserved.
4.3.4
SPI decoder enable register
The SPI decoder enable register, PLD_EN (0x1000000C), contains one active bit (bit
0) which is used to enable/disable the SPI bus chip-select decoder (see SPI bus on
page 3-28).
•
0 = SPI chip-select decoder disabled
•
1 = SPI chip-select decoder enabled.
4.3.5
Software input/output control register
The Software input/output control register, PLD_IO (0x10000010),
register controls
the LEDs connected to the PLD IO pins (see LED control on page 3-33) and monitors
the DEVMODE and BOOTSEL switches.
4.3.6
IrDA enable register
The IrDA enable register, PLD_IrDA (0x10000014), contains one active bit (bit 0)
which is used to enable/disable the IrDA port transceiver.
•
0 = IrDA port disabled
•
1 = IrDA port enabled.
Table 4-11 PLD input/output register
Bit
Name
Function
6
PLD_BOOTSEL
(read-only)
This bit indicates the setting of the BOOTSEL
switch (see Setting the switches on page 2-3).
5
PLD_DEVMODE
(read-only)
This bit indicates the setting of the DEMODE
switch (see Setting the switches on page 2-3).
4
PLD_LED3
These bits are used to enable/disable individual
LEDs that are connected to the PLD:
0 = LED OFF
1 = LED ON
3
PLD_LED2
2
PLD_LED1
1
PLD_LED0
0
PLD_LEDEN
This bit is used to enable/disable all of the LEDs
connected to the PLD, overriding the individual
control bits.
0 = LEDs disabled
1 = LEDs enabled
Summary of Contents for Prospector P1100
Page 1: ...ARM DUI 0122A Prospector P1100 User Guide ...
Page 4: ...iv Copyright ARM Limited 2000 All rights reserved ARM DUI 0122A ...
Page 86: ...Hardware Description 3 54 Copyright ARM Limited 2000 All rights reserved ARM DUI 0122A ...
Page 140: ...Connector reference A 18 Copyright ARM Limited 2000 All rights reserved ARM DUI 0122A ...