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參數(shù)資料
| 型號： | PC87782 |
| 文件頁數(shù)： | 11/17頁 |
| 文件大?。?/td> | 114K |
| 代理商： | PC87782 |
11
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VREF
Analog Input
1
Reference Voltage for the on-chip A/D and D/A circuits.
An External Reference voltage should be connected to
this input.
WAIT signal for inserting Wait states into accesses to
slow off-chip memories or peripherals.
WAIT
TTL
N/A
1
Table 3 Input Pins
Signal
Type
Pin Number
No. of
Sig Pins
Function
100-pin
160-pin
Table 4 Output Pins
Signal
Type
Pin Number
No. of Sig
Pins
Function
100-pin
160-pin
32KX2
OSCOUT
1
32.768 KHz Crystal Oscillator Interface output to
crystal
Processor System Clock
Digital to Analog Converter Output.
Interrupts from Host Interface channels A and B.
NAND Test Output.
MII Output data.
MII Transmit Enable
Address A0 through A15. CR16A address to memory.
Bus Status bits 0 through 2
Pipe Flow Status.
Pipe Long Instruction Status.
Output Enable.
Zone Select 0. Chip-select signal for the External
Memory.
Zone Select 1. Used to select the off-chip Base
Memory.
Chip-select signal for the I/O Expansion.
Write control for bytes 0 and 1
CLK
DAOUT
IRQA, IRQB
NTEST
TXD0-3
TX_EN
A0-15
BST(2,1,0)
PFS
PLI
RD
SEL0
CM
Analog out
CM
CM
MII Out
MII Out
CM
CM
CM
CM
CM
CM
1
1
2
1
4
1
16
3
1
1
1
N/A
N/A
N/A
N/A
N/A
N/A
1
SEL1
CM
N/A
1
SELIO
WR(1,0)
CM
CM
N/A
N/A
1
2
Table 5 Input/Output Pins
Signal
Type
Pin Number
No. of
Sig Pins
Function
100-pin
160-pin
HD0-7
CMHD2-TTL
8
Bi-directional Data bus used to interface the PC87782
to the peripheral data bus of a host.
Port B, bits 0 through 7.
PB0-7
CM-PU-
Schmitt
CM-PU-
Schmitt
CM-PU-TTL
Analog I/O
CM-PU-
Schmitt
CM-PU-
Schmitt
8
PC0-7
8
Port C, bits 0 through 7.
PF0-7
PI0-7
8
Port F, bits 0 through 7
Analog inputs to the A/D converter. PI0 and PI1 can
be analog feedback outputs from the Op-Amps. All
Port I pins can be digital inputs or outputs.
Port L, bits 0 through 7
8
PL0-7
8
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