Rabbit 6000 User Manual page 144

Parallel Port Fx Control Register
(PF0CR)
(PF1CR)
(PF2CR)
(PF3CR)
(PF4CR)
(PF5CR)
(PF6CR)
(PF7CR)
Bit(s) Value
7:5
4 0
1
3:2 00
01
10
11
1:0 00
01
10
11
Rabbit 6000 User's Manual
(Address = 0x04B8)
(Address = 0x04B9)
(Address = 0x04BA)
(Address = 0x04BB)
(Address = 0x04BC)
(Address = 0x04BD)
(Address = 0x04BE)
(Address = 0x04BF)
These bits are reserved and should be written with zeros.
Fast output slew rate.
Slow output slew rate.
4 mA output drive capability.
8 mA output drive capability.
10 mA output drive capability.
14 mA output drive capability.
No pullup or pulldown resistor.
75 k pullup resistor.
75 k pulldown resistor.
75 k keeper.
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Description
144