Transcript Document

CprE 211 Break-out Board Layout
Address Bus (A23-A0)
#1
#2
#3
#4
A5-A2
1 MB SRAM (#1)
CS0*
Address Demux
D7-D0
To Enable Lines
for each Buffer
or Latch
Input Devices
D31-D24
Digital Input 1
1 MB SRAM (#2)
1 MB SRAM (#3)
1 MB SRAM (#4)
D23-D16
D15-D8
D7-D0
Digital Input 2
DIP Switch 1
DIP Switch 2
Optoisolator
Pull-Down
Resistors
Pull-Down
Resistors
Optoisolator
Octal Latch
Octal Latch
Octal Latch
CS1*
Potentiometers
Analog 1
Analog 2
Analog 3
Analog 4
Keyboard Input
Octal Latch
Octal Latch
AN3
AN2
AN1
AN0
Output Devices
Data Bus (D31-D0)
Data Strobe
LED Bargraph 1
LED Bargraph 2
8-bit Output Pins
7-Segment Disp.
7-Segment Disp.
Resistor Bank
Resistor Bank
7-Seg Decoder
7-Seg Decoder
8-bit Output Pins
LCD Display
Resistor Bank
Resistor Bank
Optoisolator
Optoisolator
Octal Buffer
Octal Buffer
Octal Buffer
Octal Buffer
Octal Buffer
8-bit Input Port
Resistor Bank
7-Segment Disp.
D7-D0
External 7-Seg
Display (also on board)
Octal Buffer
Address Selection for External Devices
!CS2
A05
A04
5V
5V
Strobe
A03
A02
Pin 24
Inhibit
B
C
S7
D
S6
S10
S5
S11
S4
Address Bus
Vcc
Pin 1
A
74HC4514
S8
S3
S9
S1
S14
S2
S15
S0
S12
Gnd
S13
Device 10 Enable
Device 11 Enable
Device 8 Enable
Device 9 Enable
Device 14 Enable
Device 15 Enable
Device 12 Enable
Device 13 Enable
Device 0 Enable
Device 2 Enable
Device 1 Enable
Device 3 Enable
Device 4 Enable
Device 5 Enable
Device 6 Enable
Device 7 Enable
7 – Segment Decoder and Display
5V
Pin 8
5V
Output 5
Output 6
D05
D06
A1
A2
Vcc
Pin 1
Pin 16
!RBO
P0
P15
Pin 9
P1
P14
Pin 10
P13
Pin 7
P12
D07
D04
Pin 6
P11
Pin 4
P10
Pin 2
Pin 16
a
P2
b
P3
A3
c
P4
A0
d
P5
Gnd
e
P6
P9
NC P7
P8
!RBI
Output 7
Output 4
f
g
Pin 1
!LE
DM9368N
270 W
Resistor
Network (8)
Pin 1
NC
5V
Pin 8
5V
Output 2
Output 3
D02
D03
A1
P15
Pin 1
Pin 16
A2
f
P0
P15
Pin 9
!LE
g
P1
P14
Pin 10
P13
Pin 7
P12
Pin 6
P11
Pin 4
P10
Pin 2
Pin 1
!RBO
a
P2
b
P3
A3
c
P4
A0
d
P5
Gnd
e
P6
P9
NC P7
P8
!RBI
Output 1
Output 0
D01
D00
Pin 16
DM9368N
270 W
Resistor
Network (8)
Pin 1
NC
Octal Buffer for Output Devices
Device x Enable Line
from Address Selection
5V
!OE1
Data Bus
D0
D1
D2
D3
D4
D5
D6
D7
Vcc
Pin 1
Pin 20
A1
!OE2
A2
Y1
A3
Y2
A4
A5
Y3
SN74AHCT541
Y4
A6
Y5
A7
Y6
A8
Y7
Gnd
Y8
Output 0
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
Octal Latch for Input Devices
5V
Vcc
Pin 1
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Pin 20
D0
O0
D1
O1
D2
O2
D3
D4
D0
D1
D2
D3
D4
D5
D6
D7
O3
SN74AHCT541
O4
D5
O5
D6
O6
D7
O7
Gnd
LE
Device x Enable Line
from Address Selection
Data Bus
!OE
LED Bargraph Output (2 total)
5V
Pin 1
Output 0
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
P0
P15
Pin 1
Pin 16
P1
P14
P2
P3
P4
P5
P13
270 W
Resistor
Network (8)
P12
P11
P10
P6
P9
P7
P8
DIP Switch Input (2 total)
5V
Gnd
P0
P15
Pin 1
P14
P2
P13
P3
P4
P5
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Pin 16
P1
10 KW
Resistor
Network (8)
P12
P11
P10
P6
P9
P7
P8
P0
P19
Pin 1
P0
Pin 20
P15
P1
P18
P1
P14
P2
P17
P2
P13
P3
P16
P3
P12
P4
P11
P5
P5
P10
P6
P13
P6
P9
P7
P12
P7
P8
P8
P11
P9
P10
Pin 1
Pin 16
5V
P4
16 Pin
P15
20 Pin
P14
PB-0555 Board
PPC555
I/O Pin Header #2
I/O Pin Header #4
I/O Pin Header #1
P0
P23
Pin 1
Pin 24
P1
P22
P2
P21
P3
P20
P4
P19
I/O Pin Header #3
P5
P6
I/O Pin Header #1
I/O Pin Header #2
I/O Pin Header #3
I/O Pin Header #4
P18
24 Pin
P17
P7
P16
P8
P15
P9
P14
P10
P13
P11
P12
Address Bus (A23-A0)
Data Bus (D32-D0)
To Enable Lines
for each Buffer
Or Latch
Address
Selection