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Rabbit 3000 Microprocessor
5.5 Description of Pins with Alternate Functions
Table 5-2. Pins With Alternate Functions
Pin Name
Output Function
Input Function
Input Capture Option
PA[7:0]
SLAVE_D[7:0],
IODat[7:0]
SLAVE_D[7:0],
IODat[7:0]
PB[7]
SLAVE_ATTNB,
IOAddr[5]
PB[6]
IOAddr[4]
PB[5]
IOAddr[3]
SLAVE_AD[1]
PB[4]
IOAddr[2]
SLAVE_AD[0]
PB[3]
IOAddr[1]
SLAVE_RDB
PB[2]
IOAddr[0]
SLAVE_WRB
PB[1]
CLKA
CLKA
PB[0]
CLKB
CLKB
PC[7]
n/a
RXA
yes
PC[6]
TXA
n/a
PC[5]
n/a
RXB
yes
PC[4]
TXB
n/a
PC[3]
n/a
RXC
yes
PC[2]
TXC
n/a
PC[1]
n/a
RXD
yes
PC[0]
TXD
n/a
PD[7]
ALT_RXA
yes
PD[6]
ALT_TXA
PD[5]
ALT_RXB
yes
PD[4]
ALT_TXB
PD[3]
yes
PD[2]
PD[1]
yes
PD[0]
PE[7]
IOCTLB[7]
/SCS (slave chip select)
PE[6]
IOCTLB[6]
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